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NWPX Infrastructure, Inc.

nwpx · NASDAQ Industrials
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Ticker nwpx
Exchange NASDAQ
Sector Industrials
Industry Manufacturing - Metal Fabrication
Employees 1358
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FY2008 Annual Report · NWPX Infrastructure, Inc.
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-K
È ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

EXCHANGE ACT OF 1934

For the Fiscal Year Ended: December 31, 2008
OR
‘ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

EXCHANGE ACT OF 1934

For the transition period from

to

Commission File Number: 0-27140

NORTHWEST PIPE COMPANY

(Exact name of registrant as specified in its charter)

OREGON
(State or other jurisdiction
of incorporation or organization)

93-0557988
(I.R.S. Employer
Identification No.)

5721 SE Columbia Way, Suite 200
Vancouver, WA 98661
(Address of principal executive offices and zip code)
360-397-6250
(Registrant’s telephone number including area code)
Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class of Stock

Name of Each Exchange on Which Registered

Common Stock, par value $0.01 per share
Preferred Stock Purchase Rights

NASDAQ Global Select Market
NASDAQ Global Select Market

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant

Act. Yes ‘ No È

is a well-known seasoned issuer, as defined in Rule 405 of the Securities

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the

Act. Yes ‘ No È

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the
Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file
such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes È No ‘

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and
will not be contained, to the best of Registrant’s knowledge, in definitive proxy or information statements incorporated by
reference in Part III of this Form 10-K, or any amendment to this Form 10-K. ‘

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a
smaller reporting company. See definitions of “large accelerated filer”, “accelerated filer”, and “smaller reporting company” in
Rule 12b-2 of the Act. (Check one):
Large accelerated filer ‘

Smaller reporting company ‘

Non-accelerated filer ‘

Accelerated filer È

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ‘ No È
The aggregate market value of the common equity that was held by non-affiliates of the Registrant was $498,810,206 as of

June 30, 2008 based upon the last sales price as reported by Nasdaq.

The number of shares outstanding of the Registrant’s Common Stock as of March 10, 2009 was 9,236,493 shares.

The Registrant has incorporated into Parts II and III of Form 10-K by reference portions of its Proxy Statement for its 2009

Annual Meeting of Shareholders.

Documents Incorporated by Reference

NORTHWEST PIPE COMPANY
2008 ANNUAL REPORT ON FORM 10-K
TABLE OF CONTENTS

Part I

Item 1
Business . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 1A Risk Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 1B Unresolved Staff Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 2
Legal Proceedings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 3
Submission of Matters to a Vote of Security Holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 4

Part II

Item 5 Market for the Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases
of Equity Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selected Financial Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 6
Item 7 Management’s Discussion and Analysis of Financial Condition and Results of Operations . . . . .
Item 7A Quantitative and Qualitative Disclosures About Market Risk . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 8
Financial Statements and Supplementary Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changes in and Disagreements with Accountants on Accounting and Financial Disclosure . . . . .
Item 9
Item 9A Controls and Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 9B Other Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Part III

Item 10 Directors, Executive Officers and Corporate Governance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 11 Executive Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 12

Security Ownership of Certain Beneficial Owners and Management and Related Stockholder

Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 13 Certain Relationships and Related Transactions, and Director Independence . . . . . . . . . . . . . . . .
Principal Accountant Fees and Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 14

Part IV

Page

1
6
12
13
13
14

15
17
18
27
27
27
28
29

30
31

31
31
31

Item 15 Exhibits and Financial Statement Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Item 1.

Business

PART I

We are a leading North American manufacturer of large-diameter, high-pressure steel pipeline systems for
use in water infrastructure applications, primarily related to drinking water systems. Our pipeline systems are
also used for hydroelectric power systems, wastewater systems and other applications. With a history that dates
back more than 100 years, we have established a leading position based on a strong, widely recognized reputation
for quality and service and an extensive array of product offerings. Our manufacturing facilities are strategically
located throughout North America to provide us with broad geographic coverage of our target markets, giving us
competitive advantages in serving our customers.

We manufacture water infrastructure products through our Water Transmission Group, which in 2008
generated approximately 62% of our net sales. We market our water infrastructure products through an in-house
sales force comprised of sales representatives, engineers and support personnel who work closely with public
water agencies, contractors and engineering firms, often years in advance of projects being bid. This allows us to
identify and evaluate planned projects at early stages and participate in the engineering and design process to
promote the advantages of our systems. Our sales have historically been driven by the need for new water
infrastructure, which is based primarily on overall population growth and population movement between regions.
We believe the need for new water infrastructure will continue to be a significant growth driver for us and,
importantly, will be accompanied by the increasing need for water infrastructure upgrades, repairs and
replacements due to the aging and outdated water infrastructure systems throughout North America.

In addition to manufacturing water infrastructure products, we also manufacture other welded steel products
through our Tubular Products Group, which in 2008 generated approximately 38% of our net sales. Our Tubular
Products Group has the capability to manufacture a broad array of small-diameter, electric resistance welded
(“ERW”) steel pipe for use in a wide range of applications, including energy, construction, agricultural,
industrial, and traffic signpost systems.

Our Industries

Water Transmission. The U.S. market for water delivery equipment and systems is estimated to be
approximately $13 billion annually. Within this market, we focus on engineered pipeline systems that utilize
large-diameter, high-pressure steel pipe. In addition to these water infrastructure applications, our Water
Transmission Group manufactures products for certain structural piling applications and in-plant pipeline
systems for power plants and other industrial applications. We believe the current addressable market for the
products sold by our Water Transmission Group will total approximately $3 billion over the next three years. Our
core market is the large-diameter, high-pressure portion of the pipeline that is typically at the “upper end” of a
pipeline system. This is the portion of the overall water pipeline that generally transports water from the source
to a treatment plant or from a treatment plant into the distribution system, rather than the small lines that deliver
water directly into households.

A combination of population growth, movement to new population centers, dwindling supplies from
developed water sources, substantial underinvestment in water infrastructure over the past several decades, and
an increasingly stringent regulatory environment are driving considerable and growing demand for water
infrastructure projects in the United States. These trends are increasing the need for new water infrastructure as
well as the need to upgrade, repair and replace existing water infrastructure, which we believe will significantly
increase the demand for our water infrastructure products and other products related to water transmission and
distribution.

The primary drivers of growth in new water infrastructure installation are population growth and movement.
According to the U.S. Census Bureau, the population of the United States will increase by over 100 million
people between 2010 and 2050. The resulting increase in demand will require substantial new infrastructure, as

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the existing U.S. water infrastructure is not equipped to provide water to millions of new residents. The
combination of population growth and movement is projected to result in more than 70 million new residents in
the southern and western regions of the United States. In addition, many current water supply sources are in
danger of being exhausted. The development of new sources of water at greater distances from population centers
will drive the demand for new water transmission lines. Our manufacturing facilities are well located to take
advantage of the anticipated growth and demand in these regions.

Many authorities, including the U.S. Environmental Protection Agency (“EPA”), believe the U.S. water
infrastructure is in critical need of an update. With the average age of water transmission pipes in the United
States approximately 70 years, much of the U.S. water infrastructure is antiquated and requires upgrade, repair or
replacement. Some water transmission pipelines in the United States are over 100 years old, and the American
Society of Civil Engineers has given poor ratings to many aspects of the U.S. water infrastructure in their 2009
Report Card for America’s Infrastructure. By 2020, approximately 44% of the water pipe in the United States
will be classified as “poor” to “life-elapsed” if renewal or replacement of the existing infrastructure does not
occur. In its third national assessment of public water system infrastructure, the EPA in 2005 estimated that a
total investment of approximately $277 billion will be needed to install, upgrade and replace infrastructure over
the next 20 years. The EPA estimates that approximately $184 billion of this needed investment applies to the
rehabilitation or replacement of deteriorated or undersized water transmission and distribution infrastructure.

Increased public awareness of problems with the quality of drinking water and efficient water usage has
resulted in more stringent application of federal and state environmental regulations. The need to comply with
these regulations in an environment of heightened public awareness towards water issues is expected to
contribute significantly to growth in the water infrastructure industry over the next several years. Water systems
will need to be installed, upgraded and replaced in order to satisfy these water quality laws and regulations while
overall demand for water continues to increase.

Tubular Products. The tubular products industry encompasses a wide variety of products serving a diverse
group of end markets. We have been active in several of these markets, including mechanical tubing, agriculture,
energy, traffic signpost systems, fire protection sprinkler systems and structural tubing. Within our focus
markets, we believe traffic signpost systems, energy products, fire protection sprinkler systems and agricultural
products offer significant growth opportunities. Our sales to the energy market have grown substantially in the
past few years, and we believe this market will continue to provide growth opportunities going forward. We are
relocating a pipe mill from our Portland, Oregon facility to Bossier City, Louisiana in order to expand our
production of products for the energy market. We manufacture several different signpost systems and believe this
business will also grow over the next several years as our systems are adopted in additional states and
jurisdictions.

Products

Water Transmission Products. Water transmission pipe is used for high-pressure applications, typically
requiring pipe to withstand pressures in excess of 150 pounds per square inch. Most of our water transmission
products are made to custom specifications and are for fully engineered, large diameter, high-pressure water
infrastructure systems. Other uses include pipe for piling and hydroelectric projects, wastewater transmission,
treatment plants and other applications. Our primary manufacturing process has the capability to manufacture
water transmission pipe in diameters ranging from 4.5 inches to 156 inches with wall thickness of 0.135 inches to
1.00 inches. We also have the ability to manufacture even larger and heavier pipe with other processes. We can
coat and/or line these products with cement mortar, polyethylene tape, polyurethane, paints, epoxies, Pritec®, and
coal tar enamel according to our customers’ specifications. We maintain fabrication facilities that provide
installation contractors with custom fabricated sections as well as straight pipe sections. We typically deliver a
complete pipeline system to the installation contractor.

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Tubular Products. Our tubular products range in size from 0.50 inches to 16 inches in diameter with wall
thickness from 0.035 inches to 0.315 inches. These products are typically sold to distributors or OEMs and are
used for a wide variety of applications, including water well casing, fire protection, energy, traffic signpost
systems, and agricultural products.

Marketing

Water Transmission. The primary customers for water transmission products are installation contractors for
projects funded by public water agencies. Our plant locations in Oregon, Colorado, California, West Virginia,
Texas, Utah and Mexico allow us to efficiently serve customers throughout the United States, as well as Canada
and Mexico. Our water transmission marketing strategy emphasizes early identification of potential water
projects, promotion of specifications consistent with our capabilities and close contact with the project designers
and owners throughout the design phase. Our in-house sales force is comprised of sales representatives, engineers
and support personnel who work closely with public water agencies, contractors and engineering firms, often
years in advance of projects being bid. This allows us to not only identify and evaluate planned projects at early
stages, but also to participate in the engineering and design process and ultimately promote the advantages of our
systems. After an agency completes a design, they publicize the upcoming bid for a water transmission project.
We then obtain detailed plans and develop our estimate for the pipe portion of the project. We typically bid to
installation contractors who include our bid in their proposals to public water agencies. A public water agency
generally awards the entire project to the contractor with the lowest responsive bid.

Tubular Products. Our tubular products are marketed through a network of direct sales force personnel,
sales agents, and independent distributors in the United States, Canada and Mexico. Our tubular product facilities
are located in Kansas, Texas, and Louisiana. Our marketing strategy focuses on quality, customer service and
customer relationships. For example, we are willing to sell in small lot sizes and are able to provide mixed
truckloads of finished products to our customers. Our tubular products are primarily sold to distributors, although
we also sell to OEMs to a lesser extent. Our sales effort emphasizes regular personal contact with current and
potential customers. We supplement this effort with targeted advertising and brochures and participation in trade
shows.

Manufacturing

Water Transmission. Water transmission manufacturing begins with the preparation of engineered drawings
of each unique piece of pipe in a project. These drawings are prepared on our proprietary computer-aided design
system and are used as blueprints for the manufacture of the pipe. After the drawings are completed and
approved, manufacturing begins by feeding steel coil continuously at a specified angle into a spiral weld mill
which cold forms the band into a tubular configuration with a spiral seam. Automated arc welders, positioned on
both the inside and the outside of the tube, are used to weld the seam. The welded tube is then cut at the specified
length. After completion of the forming and welding phases, the finished cylinder is tested and inspected in
accordance with project specifications, which may include 100% radiographic analysis of the weld seam. The
cylinders are then coated and lined as specified. Possible coatings include coal tar enamel, polyethylene tape,
polyurethane paint, epoxies, Pritec® and cement mortar. Linings may be cement mortar, polyurethane or epoxies.
Following coating and lining, certain pieces may be custom fabricated as required for the project. This process is
performed in our fabrication facilities. Upon final inspection, the pipe is prepared for shipment. We ship our
products to project sites principally by truck and rail.

Tubular Products. Tubular products are manufactured by an ERW process in diameters ranging from 0.50
inches to 16 inches. This process begins by unrolling and slitting steel coils into narrower bands sized to the
circumference of the finished product. Each band is re-coiled and fed into the material handling equipment at the
front end of the ERW mill and fed through a series of rolls that cold-form it into a tubular configuration. The
resultant tube is welded by high-frequency electric resistance welders. Some products are reconfigured into
rectangular and square shapes and then cut into the appropriate lengths. After exiting the mill, the products are
straightened, inspected, tested and end-finished. Certain products are coated.

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Technology. Advances in technology help us produce high quality products at competitive prices. We
continue to invest in technological improvements, which include the addition of a state of the art pipe blasting
and coating facility, and two new spiral weld mills, which will provide faster speeds, utilize larger and wider
coils, and increase yield. In addition, we have installed a new water based coating system that has set the
standard for the fire protection pipe market. To stay current with technological developments in the United States
and abroad, we participate in trade shows, industry associations, research projects and vendor trials of new
products.

Quality Assurance. We have quality management systems in place that assure we consistently provide
products that meet or exceed customer and applicable regulatory requirements. The Quality Assurance
department reports directly to the chief executive officer. All of our quality management systems in the United
States are registered by the International Organization for Standardization, or ISO, under a multi-site registration.
In addition to ISO qualification, the American Institute of Steel Construction, American Petroleum Institute,
American Society for Mechanical Engineers, Factory Mutual, National Sanitary Foundation, and Underwriters
Laboratory have certified us for specific products or operations. The Quality Assurance department is responsible
for monitoring and measuring characteristics of the product. Inspection capabilities include, but are not limited
to, visual, dimensional, liquid penetrant, magnetic particle, hydrostatic, ultrasonic, phased array ultrasonics, real-
time imaging enhancement, real-time radioscopic, base material tensile, yield and elongation, sand sieve analysis,
coal-tar penetration, concrete compression, lining and coating dry film thickness, adhesion, absorption, guided
bend, charpy impact, hardness, metallurgical examinations, chemical analysis, spectrographic analysis and
finished product final inspection. Product is not released for shipment to our customers until there is verification
that all product requirements have been met.

Product Liability. The manufacturing and use of our products involves a variety of risks. Certain losses may
result, or be alleged to result, from defects in our products, thereby subjecting us to claims for damages,
including consequential damages. We warrant our products to be free of certain defects for one year. We
maintain insurance coverage against potential product liability claims in the amount of $51 million, which we
believe to be adequate. However, there can be no assurance that product liability claims exceeding our insurance
coverage will not be experienced in the future or that we will be able to maintain such insurance with adequate
coverage.

Backlog

Our backlog includes confirmed orders, including the balance of projects in process, and projects for which
we have been notified we are the successful bidder even though a binding agreement has not been executed.
Projects for which a binding contract has not been executed could be canceled. Binding orders received by us
may also be subject to cancellation or postponement; however, cancellation would generally obligate the
customer to pay the costs incurred by us. As of December 31, 2008 and 2007, our backlog of orders was
approximately $190 million and $211 million, respectively. Backlog as of December 31, 2008 includes projects
having a value of approximately $5 million for which binding contracts had not yet been executed as of
March 10, 2009. Backlog as of any particular date may not be indicative of actual operating results for any fiscal
period. There can be no assurance that any amount of backlog ultimately will be realized.

Competition

Water Transmission. We have several competitors in the water transmission business. Most water
transmission projects are competitively bid and price competition is vigorous. Price competition may reduce the
gross margin on sales, which may adversely affect overall profitability. Other competitive factors include timely
delivery, ability to meet customized specifications and high freight costs which may limit the ability of
manufacturers located in other market areas to compete with us. With water transmission manufacturing facilities
in Oregon, Colorado, California, West Virginia, Texas, Utah and Mexico, we believe we can more effectively
compete throughout the United States, Canada and Mexico. Our primary competitor in the water transmission

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business in the western United States and southwestern Canada is Ameron International, Inc. East of the Rocky
Mountains, our primary competition includes: American Cast Iron Pipe Company and Mueller Water Products,
both of which manufacture ductile iron pipe; American Spiral Weld Pipe Company, which manufactures spiral
welded steel pipe; and Hanson Pipe & Precast, which manufactures concrete pressure pipe and spiral welded
steel pipe.

No assurance can be given that other new or existing competitors will not establish new facilities or expand
capacity within our market areas. New or expanded facilities or new competitors could have a material adverse
effect on our ability to capture market share and maintain product pricing.

Tubular Products. The market for tubular products is highly fragmented and diversified with over 100
manufacturers in the United States and a number of foreign-based manufacturers that export such pipe into the
United States. Manufacturers compete with one another primarily on the basis of price, established business
relationships, customer service and delivery. In some of the sectors within the tubular products industry,
competition may be less vigorous due to the existence of a relatively small number of companies with the
capabilities to manufacture certain products. In particular, we operate in a variety of different markets that
require pipe with lighter wall thickness in relation to diameter than many of our competitors can manufacture. In
our markets, we typically compete with Valmont Industries, Inc., Lindsay Manufacturing Co., Tenaris, U.S.
Steel, Allied Tube and Conduit Corp. and John Maneely Company, as well as foreign competitors.

Raw Materials and Supplies

We purchase hot rolled and galvanized steel coil from both domestic and foreign steel mills. Domestic
suppliers include California Steel Industries, Inc., Beta Steel Corp., ArcelorMittal, Nucor Corporation, Gallatin
Steel Company, Steel Dynamics, Inc., SSAB, SeverStal, and U.S. Steel Corporation. Foreign suppliers include
BlueScope Steel and Ternium. We order steel according to our business forecasts for our Tubular Products
business. Steel for the Water Transmission business is normally purchased only after a project has been awarded
to us. From time to time, we may purchase additional steel when it is available at favorable prices. Purchased
steel represents a substantial portion of our cost of sales. The steel industry is highly cyclical in nature and steel
including general economic conditions,
prices are influenced by numerous factors beyond our control,
availability of raw materials, energy costs, import duties, other trade restrictions and currency exchange rates.

We also rely on certain suppliers of coating materials, lining materials and certain custom fabricated items.
We have at least two suppliers for most of our raw materials. We believe our relationships with our suppliers are
positive and have no indication that we will experience shortages of raw materials or components essential to our
production processes or that we will be forced to seek alternative sources of supply. Any shortages of raw
materials may result in production delays and costs, which could have a material adverse effect on our financial
position, results of operations or cash flows.

Environmental and Occupational Safety and Health Regulation

We are subject to federal, state, local and foreign environmental and occupational safety and health laws and
regulations, violation of which could lead to fines, penalties, other civil sanctions or criminal sanctions. These
environmental laws and regulations govern emissions to air; discharges to water (including stormwater); and the
generation, handling, storage, transportation, treatment and disposal of waste materials. We are also subject to
environmental laws requiring the investigation and cleanup of environmental contamination at properties we
presently own or operate and at third-party disposal or treatment facilities to which these sites send or arrange to
send hazardous waste. For example, we have been identified as a potentially responsible party at the Portland
Harbor Site discussed under “Legal Proceedings” below. We believe we are in material compliance with these
laws and regulations and do not currently believe that future compliance with such laws and regulations will have
a material adverse effect on our financial position, results of operations or cash flows.

5

Based on our assessment of potential liability, we have no reserves for environmental investigations and
cleanup. However, estimating liabilities for environmental investigations and cleanup is complex and dependent
upon a number of factors beyond our control and which may change dramatically. Accordingly, although we
believe maintaining no reserve is appropriate based on current information, we cannot assure you that our future
environmental investigation and cleanup costs and liabilities will not result in a material expense. During 2008,
we did not make any material capital expenditures relating primarily to environmental compliance.

We could be subject to various enforcement matters with federal, state, local and foreign regulators
regarding our compliance with environmental and occupational safety and health laws and regulations. We are
not aware of any current material enforcement matters.

We operate under numerous governmental permits and licenses relating to air emissions, stormwater run-off
and other matters. We are not aware of any current material violations or citations relating to any of these permits
or licenses. We have a practice of reducing consumption of hazardous materials in our operations by substituting
non-hazardous materials when possible.

Employees

As of December 31, 2008, we had 1,217 full-time employees. Approximately 26% were salaried and
approximately 74% were employed on an hourly basis. A union represents all of the hourly employees at our
Monterrey, Mexico facility. All other employees are non-union. We consider our relations with our employees to
be good.

Available Information

Our internet website address is www.nwpipe.com. Our Annual Report on Form 10-K, quarterly reports on
Form 10-Q, current reports on Form 8-K and amendments to those reports filed or furnished pursuant to
Section 13 or 15(d) of the Securities Exchange Act of 1934 are available through our internet website as soon as
reasonably practical after we electronically file such material with, or furnish it to, the Securities and Exchange
Commission. Our internet website and the information contained therein or connected thereto are not intended to
be incorporated into this Annual Report on Form 10-K.

Additionally, the public may read and copy any materials we file with the SEC at the SEC’s Public
Reference Room at 100 F Street, N.W., Washington D.C. 20549. The public may obtain information on the
operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC also maintains an
Internet site that contains reports, proxy and information statements, and other information regarding issuers that
file electronically with the SEC at www.sec.gov.

Item 1A. Risk Factors

Following are the key risk factors that have affected our net sales and net income in the past and could

materially impact our future net sales and net income:

The success of our business is affected by general economic conditions, and our business may be
adversely affected by an economic slowdown or recession. Periods of economic slowdown or recession in the
United States, or the public perception that one may occur, could decrease the demand for our products, affect the
price of our products and adversely impact our business. We have been impacted in the past by the general
slowing of the economy, and the current economic slowdown could have an adverse impact on our business,
financial position, results of operations or cash flows. In particular, our tubular products group is exposed to the
non-residential construction, agriculture, energy exploration, and highway spending markets, and a significant
downturn in any one of these markets could cause a reduction in our revenues that could be difficult to offset.

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A downturn in government spending related to public water transmission projects would adversely
affect our business. Our water transmission business accounted for approximately 62% of our net sales in 2008.
Our water transmission business is primarily dependent upon spending on public water transmission projects,
including water infrastructure upgrades, repairs and replacement and new water infrastructure spending, which,
in turn, depends on, among other things:

•

•
•

•

the need for new or replacement infrastructure;

the priorities placed on various projects by governmental entities;
federal, state and local government spending levels, including budgetary constraints related to capital
projects and the ability to obtain financing; and

the ability of governmental entities to obtain environmental approvals, right-of-way permits and other
required approvals and permits.

Decreases in the number of, or government funding of, public water transmission projects would adversely

affect our business, financial position, results of operations, or cash flows.

Project delays in public water transmission projects could adversely affect our business. The public
water agencies constructing water transmission projects generally announce the projects well in advance of the
bidding and construction process. It is not unusual for projects to be delayed and rescheduled. Projects are
including changes in project priorities, difficulties in
delayed and rescheduled for a number of reasons,
complying with environmental and other government regulations and additional
time required to acquire
rights-of-way or property rights. Delays in public water transmission projects may occur with too little notice to
allow us to replace those projects in our manufacturing schedules. As a result, our business, financial position,
results of operations or cash flows may be adversely affected by unplanned downtime.

We operate in highly competitive industries, and increased competition could reduce our gross profit
and net income. We face significant competition in all of our businesses. Orders in the water transmission
business are competitively bid, and price competition can be vigorous. Price competition may reduce the gross
margin on sales, which may adversely affect overall profitability. Other competitive factors include timely
delivery, ability to meet customized specifications and high freight costs. Although our water transmission
manufacturing facilities in Oregon, Colorado, California, West Virginia, Texas, Utah and Mexico allow us to
compete effectively throughout the United States, Canada and Mexico, we cannot assure you that new or existing
competitors will not establish new facilities or expand capacity within our market areas. New or expanded
facilities or new competitors could have a material adverse effect on our ability to capture market share and
maintain product pricing in our water transmission business. There are many competitors in the tubular products
business, and price is often a prime consideration for purchase of our products. Price competition may reduce our
gross profit, which may adversely affect our net income. Some of our competitors have greater financial,
technical and marketing resources than we do. We cannot assure you that we will be able to compete successfully
with our competitors. Failure to compete successfully could reduce our gross profit and net income, as well as
have a material adverse effect on our business, financial position, results of operations or cash flows.

Operating problems in our business could adversely affect our business, financial position, results of
operations or cash flows. Our manufacturing operations are subject to typical hazards and risks relating to the
manufacture of similar products such as:

•

•

•

•

•

•

explosions, fires, inclement weather and natural disasters;

mechanical failure;

unscheduled downtime;

labor difficulties;

an inability to obtain or maintain required licenses or permits; and

environmental hazards such as chemical spills, discharges or releases of toxic or hazardous substances
or gases into the environment or workplace.

7

The occurrence of any of these operating problems at our facilities may have a material adverse effect on the
productivity and profitability of a particular manufacturing facility or on our operations as a whole, during and
after the period of these operating difficulties. These operating problems may also cause personal injury and loss
of life, severe damage to or destruction of property and equipment, and environmental damage. In addition,
individuals could seek damages for alleged personal injury or property damage. Furthermore, we could be subject
to present and future claims with respect to workplace exposure, workers’ compensation and other matters.
Although we maintain property and casualty insurance of the types and in the amounts that we believe are
customary for our industries, we cannot assure you that our insurance coverage will be adequate for liability that
may be ultimately incurred or that such coverage will continue to be available to us on commercially reasonable
terms. Any claims that result in liability exceeding our insurance coverage could have an adverse effect on our
business, financial position, results of operations or cash flows.

Our water transmission business

faces competition from concrete and ductile iron pipe
manufacturers. Water transmission pipe is manufactured generally from steel, concrete or ductile iron. Each
pipe material has advantages and disadvantages. Steel and concrete are more common materials for larger
diameter water transmission pipelines because ductile iron pipe generally is limited in diameter due to its
manufacturing process. The public agencies and engineers who determine the specifications for water
Individual project
transmission projects analyze these pipe materials for suitability for each project.
circumstances normally dictate the preferred material. If we experience cost increases in raw materials, labor and
overhead specific to our industry or the location of our facilities, while competing products or companies do not
experience similar changes, we could experience an adverse change in the demand, price and profitability of our
products, which could have a material adverse effect on our business, financial position, results of operations or
cash flows.

Our quarterly results of operations are subject to significant fluctuation. Our net sales and operating

results may fluctuate significantly from quarter to quarter due to a number of factors, including:

•

•

•

•

•

the schedule of production of water transmission orders, including the timing of raw material receipts
or unplanned down time due to project delays;

the commencement, completion or termination of contracts during any particular quarter;

the seasonal variation in demand for tubular products;

fluctuations in the cost of steel and other raw materials; and

competitive pressures.

Results of operations in any period are not indicative of results for any future period, and comparisons

between any two periods may not be meaningful.

We depend on our senior management team, and the loss of any member could adversely affect our
operations. Our success depends on the management and leadership skills of our senior management team. The
loss of any of these individuals, particularly Brian W. Dunham, our president and chief executive officer, or our
inability to attract, retain and maintain additional personnel, could prevent us from fully implementing our
business strategy. We cannot assure you that we will be able to retain our existing senior management personnel
or to attract qualified personnel when needed. We have not entered into employment agreements with any of our
senior management personnel.

Fluctuations in steel prices may affect our future results of operations. Purchased steel represents a
substantial portion of our cost of sales, particularly in our tubular products business. The steel industry is highly
cyclical in nature, and, at times, pricing can be highly volatile due to a number of factors beyond our control,
including general economic conditions, import duties, other trade restrictions and currency exchange rates. This
volatility can significantly affect our gross profit. Although we seek to recover increases in steel prices through

8

price increases in our products, we have not always been completely successful. Any increase in steel prices that
is not offset by an increase in our prices could have an adverse effect on our business, financial position, results
of operations or cash flows.

We may be subject to claims for damages for defective products, which could adversely affect our
business, financial position, results of operations or cash flows. We warrant our products to be free of certain
defects. We have, from time to time, had claims alleging defects in our products. While these claims have
generally not been material, we cannot assure you that we will not experience material product liability losses in
the future or that we will not incur significant costs to defend such claims. While we currently have product
liability insurance, we cannot assure you that our product liability insurance coverage will be adequate for
liability that may be incurred in the future or that such coverage will continue to be available to us on
commercially reasonable terms. Any claims relating to defective products that result in liability exceeding our
insurance coverage could have an adverse effect on our business, financial position, results of operations or cash
flows.

Sustained increases in fuel costs could have an adverse impact on our profitability. We have recently
experienced significant fluctuations in fuel costs primarily as a result of macro-economic factors beyond our
control. The price of fuel fluctuates significantly over time, and events beyond our control could adversely affect
the supply and cost of fuel. Although we seek to recover increases in fuel costs through price increases in our
products, we have not always been completely successful. Any increase in fuel costs that is not offset by
increases in our prices could have an adverse impact on our business, financial position, results of operations or
cash flows.

Our products might not obtain necessary approvals or achieve market acceptance, which could
adversely affect our growth. We will continue to actively seek to develop new products and to expand our
existing products into new markets, but we cannot assure you that we will be successful in these efforts. If we are
unsuccessful in developing and marketing new products, expanding into new markets, or we do not obtain or
maintain requisite approvals for our products, the demand for our products could be adversely affected, which
could affect our business, financial position, results of operations or cash flows.

We have foreign operations, which exposes us to the risks of doing business abroad. Our fabrication
facility in Monterrey, Mexico primarily exports products to the United States. Any material changes in the
quotas, regulations or duties on imports imposed by the U.S. government and its agencies or on exports imposed
by Mexico and its agencies could adversely affect our operations in Mexico.

We also sell some of our products internationally, and part of our business strategy contemplates
international growth. Our foreign activities are also subject to various other risks of doing business in a foreign
country, including:

•

•

•

•

•

•

•

•

•

currency fluctuations;

transportation delays and interruptions;

political, social and economic instability and disruptions;

government embargoes or foreign trade restrictions;

the imposition of duties, tariffs and other trade barriers;

import and export controls;

labor unrest and current and changing regulatory environments;

limitations on our ability to enforce legal rights and remedies; and

potentially adverse tax consequences.

9

Although our operations have not been materially affected by any such factors to date, no assurance can be
given that our operations may not be adversely affected in the future. Any of these events could have an adverse
effect on our operations in the future by reducing the demand for our products and services, decreasing the prices
at which we can sell our products or otherwise having an adverse effect on our business, financial position,
results of operations or cash flows. We cannot assure you that we will continue to operate in compliance with
applicable customs, currency exchange control regulations, transfer pricing regulations or any other laws or
regulations to which we may be subject. We also cannot assure you that these customs, regulations or laws will
not be modified.

We have a significant amount of outstanding debt. We have financed our operations through cash flow
from operations, available borrowings and other financing arrangements. As of December 31, 2008, we had
approximately $121.0 million of outstanding debt.

Our debt and our debt service obligations could:

•

•

•

•

•

•

limit our ability to obtain additional financing for working capital or other purposes in the future;

reduce the amount of funds available to finance our operations, capital expenditures and other
activities;

increase our vulnerability to economic downturns, illiquid capital markets, and adverse industry
conditions;

limit our flexibility in responding to changing business and economic conditions, including increased
competition;

place us at a disadvantage when compared to our competitors that have less debt; and

with respect to our borrowings that bear interest at variable rates, cause us to be vulnerable to increases
in interest rates.

Our ability to make scheduled payments on our debt will depend on our future operating performance and
cash flow, which are subject to prevailing economic conditions, prevailing interest rate levels and other financial,
competitive and business factors, many of which are beyond our control.

Additionally,

the agreements governing our outstanding debt

include financial and other restrictive
covenants that impose certain requirements with respect to our financial condition and results of operations and
general business activities. These covenants could adversely affect us by limiting our ability to plan for or react
to market conditions or to meet our capital needs. These covenants require us to maintain certain financial ratios
and place restrictions on, among other things, our ability to incur certain additional debt and to create liens or
other encumbrances on assets. A failure to comply with the requirements of these covenants, if not waived or
cured, could permit acceleration of the related debt and acceleration of debt under other instruments that include
cross-acceleration or cross-default provisions. If any of our debt is accelerated, we cannot assure you that we
would have sufficient assets to repay such debt or that we would be able to refinance such debt on commercially
reasonable terms or at all.

Our backlog is subject to reduction and cancellation. Backlog represents products or services that our
customers have committed to purchase from us. Our backlog as of December 31, 2008 was $190 million. Our
backlog is subject to fluctuations; moreover, cancellations of purchase orders or reductions of product quantities
could materially reduce our backlog and, consequently, future revenues. Our failure to replace canceled or
reduced backlog could result in lower revenues, which could adversely affect our business, financial position,
results of operations or cash flows.

Our tubular products business has faced intense competition from imports in the past. The level of
imports of tubular products has historically impacted the domestic tubular products market. High levels of
imports may reduce the volume of tubular products sold by domestic producers and depress selling prices of

10

tubular products. We believe import levels are affected by, among other things, overall worldwide demand for
tubular products, the trade practices of foreign governments, government subsidies to foreign producers and
governmentally imposed trade restrictions in the United States. Increased imports of tubular products in the
United States and Canada could adversely affect our business, financial position, results of operations or cash
flows.

We are subject to stringent environmental and health and safety laws, which may require us to incur
substantial compliance and remediation costs, thereby reducing our profits. We are subject to many federal,
state, local and foreign environmental and health and safety laws and regulations, particularly with respect to the
use, handling, treatment, storage, discharge and disposal of substances and hazardous wastes used or generated in
our manufacturing processes. Compliance with these laws and regulations is a significant factor in our business.
We have incurred, and expect
to continue to incur, significant expenditures to comply with applicable
environmental laws and regulations. Our failure to comply with applicable environmental laws and regulations
and permit requirements could result in civil or criminal fines or penalties or enforcement actions, including
regulatory or judicial orders enjoining or curtailing operations or requiring corrective measures, installation of
pollution control equipment or remedial actions.

We are currently, and may in the future be, required to incur costs relating to the investigation or
remediation of property, and for addressing environmental conditions, including, but not limited to, the issues
associated with our Portland, Oregon facility as discussed in “Business—Legal Proceedings” below. Some
environmental laws and regulations impose liability and responsibility on present and former owners, operators
or users of facilities and sites for contamination at such facilities and sites without regard to causation or
knowledge of contamination. Consequently, we cannot assure you that existing or future circumstances, the
development of new facts or the failure of third parties to address contamination at current or former facilities or
properties will not require significant expenditures by us.

We expect to continue to be subject to increasingly stringent environmental and health and safety laws and
regulations. It is difficult to predict the future interpretation and development of environmental and health and
safety laws and regulations or their impact on our future earnings and operations. We anticipate that compliance
will continue to require capital expenditures and operating costs. Any increase in these costs, or unanticipated
liabilities arising, for example, out of discovery of previously unknown conditions or more aggressive
enforcement actions, could adversely affect our results of operations, and there is no assurance that they will not
have a material adverse effect on our business, financial position, results of operations or cash flows.

We face risks in connection with potential acquisitions. Acquiring businesses that complement or expand
our operations has been an important element of our business strategy, and we continue to evaluate potential
acquisitions that may expand and complement our business. We may not be able to successfully identify
attractive acquisition candidates or negotiate favorable terms in the future. Furthermore, our ability to effectively
integrate any future acquisitions will depend on, among other things, the adequacy of our implementation plans,
the ability of our management to oversee and operate effectively the combined operations and our ability to
achieve desired operational efficiencies. If we are unable to successfully integrate the operations of any
businesses that we may acquire in the future, our business, financial position, results of operations or cash flows
could be adversely affected.

The relatively low trading volume of our common stock may limit your ability to sell your shares.
Although our shares of common stock are listed on the Nasdaq Global Select Market, we have historically
experienced a relatively low trading volume. If we have a low trading volume in the future, holders of our shares
may have difficulty selling a large number of shares of our common stock in the manner or at a price that might
otherwise be attainable.

11

The market price of our common stock could be subject to significant fluctuations. Among the factors

that could affect our stock price are:

•

•

•

•

•

•

•

•

•

•

our operating and financial performance and prospects;

quarterly variations in the rate of growth of our financial indicators, such as earnings per share, net
income and sales;

changes in revenue or earnings estimates or publication of research reports by analysts;

loss of any member of our senior management team;

speculation in the press or investment community;

strategic actions by us or our competitors, such as acquisitions or restructuring;

sales of our common stock by shareholders;

relatively low trading volume;

general market conditions and market expectations for our industry and the financial health of our
customers; and

domestic and international economic, legal and regulatory factors unrelated to our performance.

The stock markets in general have experienced broad fluctuations that have often been unrelated to the
operating performance of particular companies. These broad market fluctuations may adversely affect the trading
price of our common stock.

Certain provisions of our governing documents and Oregon law could discourage potential

acquisition proposals. Our articles of incorporation contain provisions that:

•

•

•

classify the board of directors into three classes, each of which serves for a three-year term with one
class elected each year;

provide that directors may be removed by shareholders only for cause and only upon the affirmative
vote of 75% of the outstanding shares of common stock; and

permit the board of directors to issue preferred stock in one or more series, fix the number of shares
constituting any such series and determine the voting powers and all other rights and preferences of any
such series, without any further vote or action by our shareholders.

In addition, we are subject to the Oregon Business Combination Act, which imposes certain restrictions on
business combination transactions and may encourage parties interested in acquiring us to negotiate in advance
with our board of directors. We also have a shareholder rights plan that acts to discourage any person or group
from making a tender offer for, or acquiring, more than 15% of our common stock without the approval of our
board of directors. Any of these provisions could discourage potential acquisition proposals, could deter, delay or
prevent a change in control that our shareholders consider favorable and could depress the market value of our
common stock.

Item 1B. Unresolved Staff Comments

None.

12

Item 2.

Properties

Properties

The following table provides certain information about our nine operating facilities as of December 31,

2008:

Location

Manufacturing
Space
(approx.
sq. ft.)

Portland, Oregon . . . . . . . . . . . .
Atchison, Kansas . . . . . . . . . . .
Adelanto, California . . . . . . . . .
Denver, Colorado . . . . . . . . . . .
Houston, Texas . . . . . . . . . . . . .
Parkersburg, West Virginia . . . .
Saginaw, Texas . . . . . . . . . . . . .

300,000
100,000
200,000
155,000
175,000
145,000
170,000

Pleasant Grove, Utah . . . . . . . .
Monterrey, Mexico . . . . . . . . . .

95,000
40,000

Property Size
(approx. acres)

25
60
100
40
15
90
50
(2 facilities)
40
5

Products

Number and Type of Mills

Water transmission
Tubular products
Water transmission
Water transmission
Tubular products
Water transmission
Water transmission

Water transmission
Water transmission

3 spiral mills
2 electric resistance mills
3 spiral mills
2 spiral mills
4 electric resistance mills
2 spiral mills
1 spiral mill

1 spiral mill
multiple line fabrication
capability

As of December 31, 2008, we owned all of our facilities except for our Pleasant Grove facility and one of
our Saginaw, Texas facilities, which are leased. We also own an electric resistance mill in Portland, Oregon and a
facility in Bossier City, Louisiana, which are not currently operating; however, we are in the process of moving
the mill and reopening the Bossier City facility.

We have available manufacturing capacity from time to time at each of our facilities. To take advantage of
market opportunities, we may identify capital projects that will allow us to expand our manufacturing facilities to
meet expected growth opportunities. We believe the quality and productive capacity of our facilities are
sufficient to maintain our competitive position for the foreseeable future.

Item 3.

Legal Proceedings

On December 1, 2000, a section of the lower Willamette River known as the Portland Harbor was included
on the National Priorities List (“NPL”) at the request of the U.S. Environmental Protection Agency (“EPA”).
While our Portland, Oregon manufacturing facility does not border the Willamette River, an outfall from the
facility’s storm water system drains into a neighboring property’s privately owned slip. We and 68 other parties
were notified by EPA and the Oregon Department of Environmental Quality (“ODEQ”) of potential liability
under the Comprehensive Environmental Response, Compensation and Liability Act (“CERCLA”). As of the end
of 2008 more than 200 potentially responsible parties (PRPs) on and nearby the river have been asked to file
information disclosure reports with EPA. By agreement with EPA, ODEQ is charged with ensuring that all
upland sites have “source control” to prevent future contamination to the river. A remedial investigation and
feasibility study (“RI/FS”) of the Portland Harbor is currently being directed by a group of PRPs known as the
Lower Willamette Group (“LWG”). We made a payment of $175,000 to the LWG in June 2007 as part of an
interim settlement, and we are under no obligation to any make further payment. The RI/FS is expected to be
completed by the LWG in 2009.

In 2001, groundwater containing elevated volatile organic compounds (VOCs) was identified in one
localized area of our property furthest from the river. Assessment work in 2002 and 2003 to further characterize
the groundwater is consistent with the initial conclusion that the source of the VOCs is located off of our
property. On January 25, 2005 we entered into a Voluntary Agreement for Remedial Investigation and Source
Control Measures (“Agreement”) with ODEQ related to the 2001 discovery. We performed Remedial
Investigation (“RI”) work required under the Agreement and submitted a Remedial Investigation/Source Control

13

Evaluation Report to ODEQ on December 30, 2005. The conclusions of the report indicate that VOCs in
groundwater do not present an unacceptable risk to human or ecological receptors in the Willamette River. The
report also indicates there is no evidence at this time showing a connection between detected VOCs in
groundwater and Willamette River sediments. ODEQ has recommended further RI work on groundwater, soil
and storm water at the site. That work is ongoing.

Based on the RI and reporting required under our Portland, Oregon manufacturing facility’s National
Pollutant Discharge Elimination System permit for storm water, the Company and ODEQ have identified a
possible source of small amounts of polynuclear aromatic compounds (“PAHs”) and polychlorinated biphenyls
(“PCBs”) and have periodically identified trace amounts of zinc in storm water. Storm water from the Portland,
Oregon manufacturing facility site is discharged to a neighboring property’s privately owned slip, as is storm
water from surrounding industrial properties. The slip was historically used for shipbuilding and subsequently for
ship breaking and metal recycling. Studies of the river sediments in the slip have revealed concentration of
PAHs, PCBs and zinc which are common constituents in urban storm water discharges. To minimize the zinc
traces in the storm water, we have undertaken a program to coat the roofs of a substantial part of our facility.

Concurrent with the activities of EPA and ODEQ, the Portland Harbor Natural Resources Trustee Council
(“Trustees”) sent some or all of the same parties, including us, a notice of intent to perform an Injury Assessment
for the Portland Harbor Site to determine the nature and extent of natural resource damages under CERCLA
section 107. Natural resource damages focus on site restoration as opposed to actions to remove or remediate
hazardous substances. The Trustees for the Portland Harbor Site consist of representatives from six Northwest
Indian Tribes and three federal agencies. The Trustees act independently of EPA and ODEQ but we expect their
assessment will be coordinated with the RI/FS work underway at the Portland Harbor Site. The Trustees have
encouraged potentially responsible parties to voluntarily participate in the funding of their injury assessment. We
have not assumed any payment obligation or liability related to the Trustee’s assessment.

The extent of our participation in these various matters in not known, and no further adjustment to our

financial statements has been recorded as of December 31, 2008.

We operate our facilities under numerous governmental permits and licenses relating to air emissions, storm
water run-off, and other matters. Our operations are also governed by many other laws and regulations, including
those relating to workplace safety and worker health, principally the Occupational Safety and Health Act and
regulations there under which, among other requirements, establish noise and dust standards. We believe we are
in material compliance with our permits and licenses and these laws and regulations, and we do not believe that
future compliance with such laws and regulations will have a material adverse effect on our financial position,
results of operations or cash flows. To assist with environmental compliance programs, we have employed an
environmental specialist.

From time to time, we are involved in litigation relating to claims arising out of our operations in the normal
course of our business. We maintain insurance coverage against potential claims in amounts that we believe to be
adequate. Management believes that it is not presently a party to any other litigation, the outcome of which
would have a material adverse effect on our business, financial condition, results of operations or cash flows.

Item 4.

Submission of Matters to a Vote of Security Holders

No matters were submitted to a vote of our shareholders during the quarter ended December 31, 2008.

14

PART II

Item 5. Market for the Registrant’s Common Equity, Related Stockholder Matters and Issuer

Purchases of Equity Securities

Market Information

Our common stock is quoted on the Nasdaq Global Select Market under the symbol “NWPX.” The high and
low sales prices as reported on the Nasdaq Global Select Market for each quarter in the years ended
December 31, 2008 and 2007 were as follows.

2008
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
First Quarter
Second Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Third Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fourth Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2007
First Quarter
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Second Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Third Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fourth Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Low

High

$35.10
37.75
39.68
18.75

$31.00
32.06
29.54
31.65

$44.37
58.73
65.19
44.64

$40.11
40.00
39.88
39.94

There were 72 shareholders of record and approximately 3,704 beneficial shareholders at March 10, 2008.

There were no cash dividends declared or paid in fiscal years 2008 or 2007.

15

Stock Performance Graph

The following graph compares the performance of our common stock to the performance of the Russell
2000 Index and a weighted composite index of certain peer companies (the “Peer Group”) selected by us. The
Peer Group is comprised of
Insituform
Technologies and Lindsay Manufacturing, Co.

the following companies: Ameron International Corporation,

The comparisons in the chart below are provided in response to SEC disclosure requirements and, therefore,

are not intended to forecast or be indicative of future performance of our common stock.

COMPARISON OF 5 YEAR CUMULATIVE TOTAL RETURN*
Among Northwest Pipe Company, The Russell 2000 Index
And A Peer Group

$350

$300

$250

$200

$150

$100

$50

$0

12/03

12/04

12/05

12/06

12/07

12/08

Northwest Pipe Company

Russell 2000

 Peer Group

* $100 invested on 12/31/03 in stock & index-including reinvestment of dividends.
Fiscal year ending December 31.

Indexed Returns

Northwest Pipe
Company

Russell 2000
Index

Peer Group

December 31, 2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
December 31, 2004 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
December 31, 2005 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
December 31, 2006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
December 31, 2007 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
December 31, 2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

100.00
187.45
201.05
252.59
294.06
320.14

100.00
118.33
123.72
146.44
144.15
95.44

100.00
120.36
111.47
170.97
199.69
144.05

Securities Authorized For Issuance Under Equity Compensation Plans

The information with respect to equity compensation plans is included under Item 12 of this Report.

16

Item 6.

Selected Financial Data

The following selected financial data is based on audited historical consolidated financial statements. This
information should be read in conjunction with such consolidated financial statements, including the notes
thereto, and “Management’s Discussion and Analysis of Financial Condition and Results of Operations”,
included herein or in previous filings with the SEC.

Consolidated Statement of Income Data:
Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Basic earnings per share . . . . . . . . . . . . . . . . . . . . . . . .
Diluted earnings per share . . . . . . . . . . . . . . . . . . . . . .

Consolidated Balance Sheet Data:

Year Ended December 31,

2008

2007

2006

2005

2004

In thousands, except per share amounts

$439,735
93,658
32,301
3.53
3.46

$382,824
70,215
20,832
2.32
2.26

$346,591
56,713
20,019
2.80
2.69

$329,006
53,790
13,386
1.97
1.90

$291,910
49,296
12,377
1.87
1.83

Working capital
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long-term debt, less current portion . . . . . . . . . . . . . .
Stockholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . .

$223,248
509,434
114,444
291,561

$181,524
453,563
93,336
256,282

$166,743
424,451
90,915
230,826

$150,428
338,485
94,931
159,465

$ 97,932
335,403
59,689
144,152

17

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Forward-Looking Statements

This Management’s Discussion and Analysis of Financial Condition and Results of Operations and other
sections of this Report contain forward-looking statements within the meaning of the Securities Litigation
Reform Act of 1995 that are based on current expectations, estimates and projections about our business,
management’s beliefs, and assumptions made by management. Words such as “expects,” “anticipates,”
“intends,” “plans,” “believes,” “seeks,” “estimates,” “forecasts”, “should,” and variations of such words and
similar expressions are intended to identify such forward-looking statements. These statements are not guarantees
of future performance and involve risks and uncertainties that are difficult to predict. Therefore, actual outcomes
and results may differ materially from what is expressed or forecasted in such forward-looking statements due to
numerous factors including changes in demand for our products, product mix, bidding activity, the timing of
customer orders and deliveries, the price and availability of raw materials, excess or shortage of production
capacity, international trade policy and regulations and other risks discussed at Item 1A under the caption “Risk
Factors” and from time to time in our other Securities and Exchange Commission filings and reports. In addition,
such statements could be affected by general industry and market conditions and growth rates, and general
domestic and international economic conditions. Such forward-looking statements speak only as of the date on
which they are made and we do not undertake any obligation to update any forward-looking statement to reflect
events or circumstances after the date of this Report. If we do update or correct one or more forward-looking
statements, investors and others should not conclude that we will make additional updates or corrections with
respect thereto or with respect to other forward-looking statements.

Overview

We are a leading North American manufacturer of large-diameter, high-pressure steel pipeline systems for
use in water infrastructure applications, primarily related to drinking water systems. Our pipeline systems are
also used for hydroelectric power systems, wastewater systems and other applications. We also make products
for industrial plant piping systems and certain structural applications. These pipeline systems are produced by our
Water Transmission Group from six manufacturing facilities strategically located across the United States in
Portland, Oregon; Denver, Colorado; Adelanto, California; Parkersburg, West Virginia; Saginaw, Texas;
Pleasant Grove, Utah; and one facility located in Monterrey, Mexico. Our Water Transmission Group accounted
for approximately 62% of net sales in 2008.

In February 2009, we announced a temporary shutdown of our Utah facility, as we do not currently see
sufficient near-term work located nearby to justify its operation at this time. We will maintain the equipment at
this location and closely monitor the project opportunities in and around Utah. We hope to be able to start up this
facility again in the future.

Our water infrastructure products are sold generally to installation contractors, who include our products in
their bids to municipal agencies or privately-owned water companies for specific projects. We believe our sales
are substantially driven by spending on new water infrastructure with a recent trend towards spending on water
infrastructure replacement, repair and upgrade. Within the total pipeline, our products tend to fit the larger-
diameter, higher-pressure applications.

Our Tubular Products Group operates two manufacturing facilities in Atchison, Kansas, and Houston, Texas
and produces a range of products used in several different markets. We currently make energy pipe, fire protection
sprinkler pipe, agricultural pipe, traffic signpost systems and structural pipe that is sold to distributors and used in
many different applications. Our Tubular Products Group generated approximately 38% of our net sales in 2008.

Our Tubular Products Group’s sales volume is typically driven by non-residential construction spending,
energy spending, highway spending and general economic conditions. Currently, we are focusing the efforts of
our Tubular Products Group on products for which we believe we have a sustainable advantage, and we have
seen the most significant increase in this group’s sales through growth in energy products.

18

Our Current Economic Environment

We are monitoring the current economic environment, and while we do not believe the following are
necessarily key factors impacting demand for our products, we do believe these factors warrant consideration: the
current recession; the current financial crisis; the changing cost of steel; and the American Recovery and
Reinvestment Bill of 2009 (the “stimulus plan”). Each of the factors will impact our Groups with varying degrees
of significance. Our Water Transmission Group is fundamentally a business with a long-term time horizon.
Projects are often planned for many years in advance, and are sometimes part of fifty-year build out plans. As
such, we do not expect the current recession to impact this Group in the same way it may impact the Tubular
Products Group. We expect the recessionary environment to have the biggest impact to our Tubular Products
Group, as sales in our focus markets may decrease as spending in those markets declines. Likewise, we don’t
believe the current financial crisis will have a significant impact on the Water Transmission Group in the near
term, as most of the projects in our backlog or to be bid in 2009 are already funded; water projects are typically
funded by revenue bonds which are backed by connection fees or monthly water rates, and are not generally
funded by access to general tax obligation bonds. Fluctuating steel costs will be a factor in both our Tubular
Products Group and our Water Transmission Group, as our selling prices will adjust as steel costs adjust. Finally,
while we are not currently forecasting future sales as a result of the stimulus plan, we do see upside potential;
specifically, the infrastructure portion of the plan may benefit our Water Transmission Group, as funds for water
infrastructure development are made available. To a lesser extent, our tubular products markets may also benefit
from other types of infrastructure development.

Critical Accounting Policies

The discussion and analysis of our financial condition and results of operations are based upon our
consolidated financial statements, which have been prepared in accordance with accounting principles generally
accepted in the United States.

Management Estimates:

The preparation of our financial statements requires us to make estimates and judgments that affect the
reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and
liabilities. On an on-going basis, we evaluate all of our estimates, including those related to revenue recognition,
allowance for doubtful accounts, warranties,
income taxes, and
contingencies and litigation. We base our estimates on historical experience and on various other assumptions
that are believed to be reasonable under the circumstances. Actual results may differ from these estimates under
different assumptions or conditions. We believe the following critical accounting policies and related judgments
and estimates affect the preparation of our consolidated financial statements.

intangible assets, accrued liabilities,

Revenue Recognition:

is

in our water

transmission segment

Revenue from construction contracts

recognized on the
percentage-of-completion method, measured by the costs incurred to date as a percentage of the estimated total
costs of each contract. Estimated total costs of each contract are reviewed on a monthly basis by project
management and operations personnel for substantially all projects that are fifty percent or more complete except
that major projects, usually over $5.0 million, are reviewed earlier if sufficient production has been completed to
provide enough information to revise the original estimated total cost of the project. All cost revisions that result
in the gross profit as a percent of sales increasing or decreasing by more than two percent are reviewed by senior
management personnel. Contract costs include all direct material and labor costs and those indirect costs related
to contract performance, such as indirect labor, supplies, tools, repairs and depreciation. Selling, general and
administrative costs are charged to expense as incurred. While certain contract costs are reported in the
consolidated statements of income as selling, general and administrative costs, they are included in total contract
costs incurred to date used to recognize revenue.

19

Provisions for losses on uncompleted contracts are made in the period such losses are known. Changes in
job performance, job conditions and estimated profitability,
including those arising from contract penalty
provisions, foreign currency exchange rate movements, and final contract settlements may result in revisions to
costs and income and are recognized in the period in which the revisions are determined. Historically, actual
results have been within management’s estimates.

Revenue from our tubular products segment is recognized when all four of the following criteria have been
satisfied: persuasive evidence of an arrangement exists; delivery has occurred; the price is fixed or determinable;
and collectibility is reasonably assured.

Allowance for Doubtful Accounts and Product Warranties:

We maintain allowances for estimated losses resulting from the inability of our customers to make required
payments and contract disputes, together with a reserve for warranty claims, based on management’s judgment.
The extension and revision of credit is established by obtaining credit rating reports or financial information of a
potential customer. An allowance is recorded based on a variety of factors, including our historical collection
experience. At least monthly, we review past due balances to identify the reasons for non-payment. We will write
off a receivable account once the account is deemed uncollectible, for reasons such as a bankruptcy filing,
deterioration in the customer’s financial position, contract dispute, product claim or other similar events. As of
December 31, 2008, the accounts receivable balance of $75.9 million is reported net of allowances for doubtful
accounts of $1.2 million. We believe the reported allowances at December 31, 2008, are adequate. If the
customers’ financial conditions were to deteriorate resulting in their inability to make payments, or if contract
disputes or warranty claims were to escalate, additional allowances may need to be recorded, which would result
in additional expenses being recorded for the period in which such determination was made. Historically, actual
results have been within management’s estimates.

Goodwill:

Goodwill represents the excess of cost over the assigned value of the net assets in connection with all
acquisitions. Goodwill is reviewed for impairment in accordance with Statement of Financial Accounting
Standard (“SFAS”) 142 “Goodwill and Other Intangible Assets.” SFAS 142 requires that goodwill and intangible
assets with indefinite lives are no longer amortized but are reviewed for impairment annually or more frequently
if impairment indicators arise. We review for impairment by comparing the fair value of the Tubular Products
reporting unit, as measured by discounted cash flows, market multiples based on earnings, and other valuation
methodologies, to the carrying value. As required under SFAS 142, we performed our annual assessment for
impairment of the goodwill as of December 31, 2008; based on our analysis, we believe no impairment of
goodwill exists.

Long-Lived Assets:

Property and equipment are recorded at cost. We depreciate the net book value in excess of the salvage
value using either the units of production method or a straight-line method depending on the classification of the
asset.

Property and equipment are reviewed for impairment in accordance with SFAS 144, “Accounting for the
Disposal of Long-Lived Assets.” We assess impairment of property and equipment whenever changes in
circumstances indicate that the carrying values of the assets may not be recoverable. The recoverable value of
long-lived assets is determined by estimating future undiscounted cash flows using assumptions about our
expected future operating performance. Our estimates of undiscounted cash flows may differ from actual cash
flow due to, among other things, technological changes, economic conditions, or changes to our business
operations. If we determine the carrying value of the property and equipment will not be recoverable, we
calculate and record an impairment loss.

20

Inventories:

Inventories are stated at the lower of cost or market. Raw material inventories of steel are stated at cost
either on a specific identification basis or on an average cost basis. All other raw materials, as well as supplies,
are stated on an average cost basis. Finished goods are stated at cost using the first-in, first-out method of
accounting.

Income Taxes:

We record deferred income tax assets and liabilities based upon the difference between the financial
statement and income tax bases of assets and liabilities using enacted income tax rates. Valuation allowances are
established when necessary to reduce deferred income tax assets to the amount expected to be realized. Income
tax expense is the tax payable for the period and the change during the period in net deferred income tax assets
and liabilities.

In July 2006, the Financial Accounting Standards Board (“FASB”) issued Financial Interpretation 48,
“Accounting for Uncertainty in Income Taxes” (“FIN 48”) which clarifies the accounting for uncertainty in
income taxes recognized in the financial statements in accordance with SFAS 109, “Accounting for Income
Taxes.” FIN 48 provides that a tax benefit from an uncertain tax position may be recognized when it is more
likely than not that the position will be sustained upon examination, including resolutions of any related appeals
or litigation processes, based on the technical merits.

Workers Compensation Insurance:

We are self-insured, or maintain high deductible policies, for losses and liabilities associated with workers
compensation claims. Losses are accrued based upon our estimates of the aggregate liability for claims incurred
using historical experience and certain actuarial assumptions followed in the insurance industry. There is no
assurance that such insurance coverage will adequately protect us against
liability from all potential
consequences.

Pension Benefits:

We have two defined benefit pension plans that are frozen. We fund these plans to cover current plan costs
plus amortization of the unfunded plan liabilities. To record these obligations, management uses estimates
relating to assumed inflation, investment returns, mortality, employee turnover, and discount rates. Management
reviews all of these assumptions on an annual basis.

Derivative Instruments.

We conduct business in various foreign countries, and from time to time settle transactions in foreign
currencies. We have established a program that utilizes foreign currency forward contracts to offset the risk
associated with the effects of certain foreign currency exposures,
typically arising from sales contracts
denominated in Canadian currency. At December 31, 2008 these foreign currency forward contracts were
consistent with our strategy for financial risk management; however, they do not meet the conditions under SFAS
133 “Accounting for Derivative Instruments and Hedging Activities”, as amended (“SFAS 133”) to qualify for
hedge accounting treatment. Consequently, these instruments are remeasured at fair value on each balance sheet
date and resulting gains and losses are recognized in net income.

Foreign Currency Transactions

We record foreign currency transactions in accordance with SFAS 52 “Foreign Currency Translation”.

Foreign currency transaction gains and losses are included in net income.

21

Results of Operations

The following table sets forth, for the periods indicated, certain financial information regarding costs and

expenses expressed as a percentage of total net sales and net sales of our business segments.

2008

2007

2006

Net sales:

Water transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tubular products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

61.8%
38.2

75.2%
24.8

75.5%
24.5

Total net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cost of sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

100.0
78.7

100.0
81.7

100.0
83.6

21.3
Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.0
Selling, general and administrative expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gain on sale of assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . —

Operating income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest expense, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provision for income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13.3
1.5

11.8
4.5

18.3
8.0
—

10.3
1.8

8.5
3.1

16.4
7.9
(2.2)

10.7
1.9

8.8
3.0

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.3%

5.4%

5.8%

Segment gross profit as a percentage of net sales:

Water transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tubular products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20.0%
23.4

20.9%
10.5

18.2%
10.5

Year Ended December 31, 2008 Compared to Year Ended December 31, 2007

Net sales. Net sales increased to $439.7 million in 2008 from $382.8 million in 2007. No single customer

accounted for 10% or more of total net sales in 2008 or 2007.

Water Transmission sales decreased 5.5% to $271.9 million in 2008 from $287.8 million in 2007. Net sales
for the year decreased over the prior year as a result of a decline in net sales in the fourth quarter; this decline
was due to the following: a major project was postponed in October, and we had no opportunity to replace this
volume; we shut down our highest volume production line during the fourth quarter to install a new spiral weld
mill; and finally, weather issues impacted production in all but two of our facilities. Bidding activity, backlog and
sales resulting from the award of new projects, or the production of current projects, may vary significantly from
period to period.

Tubular Products sales increased 76.6% to $167.8 million in 2008 from $95.0 million in 2007. The majority
of the increase in net sales over last year resulted from increased sales prices that accompanied rising steel costs,
combined with improved energy product sales and solid performance by our other products.

Gross profit. Gross profit increased to $93.7 million (21.3% of total net sales) in 2008 from $70.2 million

(18.3% of total net sales) in 2007.

Water Transmission gross profit decreased 9.5% to $54.5 million (20.0% of segment net sales) in 2008 from
$60.2 million (20.9% of segment net sales) in 2007. Water Transmission gross profit decreased primarily due to
the decreased plant utilization in the fourth quarter of 2008.

Gross profit from Tubular Products increased 291.5% to $39.2 million (23.4% of segment net sales) in 2008
from $10.0 million (10.5% of segment net sales) in 2007. The majority of the increase in gross profit is a result of
increased volume of energy product at higher unit sales prices compared to the previous mix of products,
combined with generally higher selling prices.

22

Selling, general and administrative expenses. Selling, general and administrative expenses increased 14.5%
to $35.2 million in 2008 from $30.7 million in 2007. Selling, general and administrative expenses as a percentage
of total net sales remained consistent at 8.0% in 2008 and 2007.

Interest expense. Interest expense decreased slightly from $6.8 million in 2007 to $6.4 million in 2008. The
decrease in interest expense was a result of lower average interest rates, partially offset by higher average
borrowings.

Income taxes. Our effective tax rate was approximately 38.0% in 2008 and 36.3% in 2007. The increase in
our effective tax rate was mainly due to the additional accrual of a contingent liability related to ongoing income
tax audits.

Year Ended December 31, 2007 Compared to Year Ended December 31, 2006

Net sales. Net sales increased to $382.8 million in 2007 from $346.6 million in 2006. No single customer

accounted for 10% or more of total net sales in 2007 or 2006.

Water Transmission sales increased 9.9% to $287.8 million in 2007 from $261.8 million in 2006. Net sales
for the year increased over the prior year as a result of a consistent higher production level in most of our
facilities. The higher production resulted from the increased backlog at the beginning of 2007 of $198.2 million
compared to $125.6 million at the beginning of 2006. This allowed the majority of our facilities to increase plant
utilization in 2007 and, combined with solid bookings early in the year, maintain this level of production
throughout the year. In addition to increased sales, the stronger demand resulted in a record backlog at
December 31, 2007 of $211.3 million.

Tubular Products sales increased 12.1% to $95.0 million in 2007 from $84.8 million in 2006. The majority
of the increase in net sales over last year resulted from improved energy product and fire protection sprinkler
pipe sales.

Gross profit. Gross profit increased to $70.2 million (18.3% of total net sales) in 2007 from $56.7 million

(16.4% of total net sales) in 2006.

Water Transmission gross profit increased 26.0% to $60.2 million (20.9% of segment net sales) in 2007
from $47.8 million (18.2% of segment net sales) in 2006. Water Transmission gross profit increased due to
higher plant utilization, productivity improvements, and the reduction of rent expense as a result of the purchase
in the fourth quarter of 2006 of manufacturing equipment that we previously leased under certain operating
leases.

Gross profit from Tubular Products increased 12.0% to $10.0 million (10.5% of segment net sales) in 2007
from $8.9 million (10.5% of segment net sales) in 2006. The increase in the gross profit is consistent with our
increase in sales.

Selling, general and administrative expenses. Selling, general and administrative expenses increased 12.1%
to $30.7 million (8.0% of total net sales) in 2007 from $27.4 million (7.9% of total net sales) in 2006. The
majority of the increase resulted from an increase in incentive compensation in 2007 and higher professional
fees.

Gain on the sale of assets. In the year ended December 31, 2006, we completed the sale of our

manufacturing facility in Riverside, California, and a gain of $7.7 million was recorded.

Interest expense. Interest expense increased slightly from $6.7 million in 2006 to $6.8 million in 2007. The
increase in interest expense resulted from slightly higher average outstanding borrowings on our note payable to
financial institution.

23

Income taxes. Our effective tax rate was approximately 36.3% in 2007 and 33.9% in 2006. The effective tax
rate in 2006 was lower than historical rates, primarily due to research and development tax credits that were
recorded during the year on amended income tax returns, and were not repeated in 2007.

Liquidity and Capital Resources

Sources and Uses of Cash

Our principal sources of liquidity generally include operating cash flow and our bank credit agreement.
From time to time our long term capital needs may be met through the issuance of long term debt or additional
equity. Our principal uses of liquidity generally include capital expenditures, working capital and debt service.
Information regarding our cash flows for the twelve months ended December 31, 2008 is presented in our
consolidated statements of cash flows contained in this Form 10-K, and is further discussed below.

As of December 31, 2008, our working capital (current assets minus current liabilities) was $223.2 million
as compared to $181.5 million as of December 31, 2007. Cash and cash equivalents decreased from $234,000 as
of December 31, 2007 to $90,000 as of December 31, 2008.

Net cash used by operating activities in 2008 was $59,000. This was primarily the result of our net income
of $32.3 million combined with a decrease in costs and estimated earnings in excess of billings on uncompleted
contracts, net of $20.3 million, offset in part by an increase in inventories of $24.5 million and an increase in
trade and other receivables of $26.6 million. The increase in inventory was largely the result of higher steel costs.
The decrease in costs and estimated earnings in excess of billings on uncompleted contracts and the increase in
trade and other receivables resulted from timing differences between production, shipment and invoicing of
products. We are typically obligated to pay for goods and services within 30 days of receipt, while cash collected
from our construction contracts typically extends for several months. Our construction contract revenues in the
water transmission segment are recognized on a percentage-of-completion method; therefore, there is little
correlation between revenue and cash receipts and the elapsed time can be significant. As such, our payment
cycle is a significantly shorter interval compared to our collection cycle.

Net cash used in investing activities in 2008 was $24.4 million, which primarily resulted from additions of

property and equipment across all of our facilities; the most significant of which was two new spiral weld mills.

Net cash provided by financing activities in 2008 was $24.3 million, which resulted from increased net
borrowings under the notes payable to financial institutions of $27.7 million, partially offset by payments on our
long-term debt.

We anticipate that our existing cash and cash equivalents, cash flows expected to be generated by
operations, and amounts available under our credit agreements will be adequate to fund our working capital and
capital requirements for at least the next twelve months. We also expect to continue to rely on cash generated
from operations and other sources of available funds to make required principal payments under our long term
debt during 2009. To the extent necessary, we may also satisfy capital requirements through additional bank
borrowings, senior notes, term notes, subordinated debt, and capital and operating leases, if such resources are
available on satisfactory terms. We have from time to time evaluated and continue to evaluate opportunities for
acquisitions and expansion. Any such transactions, if consummated, may use a portion of our working capital or
necessitate additional bank borrowings or other sources of funding.

Debt

We had the following significant components of debt at December 31, 2008: a $150.0 million credit
agreement, under which $82.1 million was outstanding; $12.9 million of Series A Term Note, $9.0 million of
Series B Term Notes, $8.6 million of Series C Term Notes and $4.5 million of Series D Term Notes.

24

Effective October 15, 2008, we entered into a Second Amendment to Amended and Restated Credit
Agreement (the “Second Amended Credit Agreement”), which amends the Amended and Restated Credit
Agreement dated May 31, 2007. The Second Amended Credit Agreement provides for a revolving loan, swing
line loan and letters of credit in the aggregate amount of up to $150 million, with an option for us to increase that
amount to $200 million, subject to lender approval. The credit agreement expires on May 31, 2012, and bears
interest at rates related to LIBOR plus 1.25% to 2.25%, or the lending institution’s prime rate, plus 0.00% to
0.75%. Borrowings under the Second Amended Credit Agreement are collateralized by substantially all of the
Company’s personal property.

At December 31, 2008, we had $82.1 million outstanding under the credit agreement bearing interest at a
weighted average rate of 3.55%. At December 31, 2008 we had an additional net borrowing capacity under the
credit facility of $55.7 million.

The Series A Term Note in the principal amount of $12.9 million matures on February 25, 2014 and
requires annual payments in the amount of $2.1 million that began February 25, 2008 plus interest of 8.75% paid
quarterly on February 25, May 25, August 25 and November 25. The Series B Term Notes in the principal
amount of $9.0 million mature on June 21, 2014 and require annual payments in the amount of $1.5 million that
began June 21, 2008 plus interest of 8.47% paid quarterly on March 21, June 21, September 21 and
December 21. The Series C Term Notes in the principal amount of $8.6 million mature on October 26, 2014 and
require annual payments of $1.4 million that began October 26, 2008 plus interest of 7.36% paid quarterly on
January 26, April 26, July 26 and October 26. The Series D Term Notes in the principal amount of $4.5 million
mature on January 24, 2015 and require annual payments in the amount of $643,000 that began January 24, 2009
plus interest of 7.32% paid quarterly on January 24, April 24, July 24 and October 24. The Series A Term Note,
the Series B Term Notes, the Series C Term Notes, and the Series D Term Notes (together, the “Term Notes”) are
collateralized by accounts receivable, inventory and certain equipment.

We had $4.0 million of capital leases outstanding at December 31, 2008, under which certain equipment

used in the manufacturing process is leased. The average interest rate on the capital leases is 5.6%.

The following table sets forth our scheduled contractual commitments that will affect our future liquidity as

of December 31, 2008 (in thousands):

Credit Agreement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Term Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Capital Leases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Leases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest Payments (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Payments due by period

Total

$ 82,065
34,929
3,993
8,507
9,255

Less than
1 year

1 -3 years

3 -5 years

$ — $ — $82,065
11,429
11,429
1,076
1,377
1,850
2,128
2,083
4,072

5,714
828
1,558
2,808

More than
5 years

$ —
6,357
712
2,971
292

Total Obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$138,749

$10,908

$19,006

$98,503

$10,332

(1) These amounts represent future interest payments related to our debt obligations, excluding the Credit

Agreement.

We also have entered into stand-by letters of credit

total approximately $12.3 million as of
December 31, 2008. The stand-by letters of credit relate to customer owned material and workers’ compensation
insurance. Due to the nature of these arrangements and our historical experience, we do not expect to make any
material payments under these arrangements.

that

The credit agreement, the Term Notes and certain of our capital leases all require compliance with the
following financial covenants: minimum consolidated tangible net worth, maximum consolidated total debt to
ratio, maximum
consolidated earnings before interest,

taxes, depreciation and amortization (EBITDA)

25

consolidated senior debt to EBITDA, a minimum consolidated fixed charge coverage ratio and a minimum asset
coverage ratio. These and other covenants included in our financing agreements impose certain requirements
with respect to our financial condition and results of operations, and place restrictions on, among other things,
our ability to incur certain additional indebtedness, to create liens or other encumbrances on assets and capital
expenditures. A failure by us to comply with the requirements of these covenants, if not waived or cured, could
permit acceleration of the related indebtedness and acceleration of indebtedness under other instruments that
include cross-acceleration or cross-default provisions. At December 31, 2008, we were not in violation of any of
the covenants in our debt agreements.

Off Balance Sheet Arrangements

We do not have any off balance sheet arrangements that are reasonably likely to have a current or future

material effect on our financial position, results of operations or cash flows.

Recent Accounting Pronouncements

In March 2008 the FASB issued SFAS No. 161, “Disclosures about Derivative Instruments and Hedging
Activities, an amendment of FASB Statement No. 133” (“SFAS 161”). SFAS 161 amends and expands the
disclosure requirements of SFAS 133 with the intent to provide users of financial statements with an enhanced
understanding of: 1) How and why an entity uses derivative instruments; 2) How derivative instruments and
related hedged items are accounted for under SFAS 133 and its related interpretations and 3) How derivative
instruments and related hedged items affect an entity’s financial position, financial performance and cash flows.
This statement is effective for financial statements issued for fiscal years and interim periods beginning after
November 15, 2008, with early application encouraged. The adoption of SFAS 161 relates specifically to
disclosures, and will not have an impact on our financial position, results of operations or cash flows.

In December 2007 the FASB issued SFAS 141(R), “Business Combinations” (“SFAS 141(R)”), which
requires the acquiring entity in a business combination to recognize and measure all assets and liabilities assumed
in the transaction and any non-controlling interest in the acquiree at fair value as of the acquisition date. SFAS
141(R) also establishes guidance for the measurement of the acquirer shares issued in consideration for a
business combination, the recognition of contingent consideration, the accounting treatment for pre-acquisition
gain and loss contingencies, the treatment of acquisition related transaction costs, and the recognition of changes
in the acquirer’s income tax valuation allowance and deferred taxes. SFAS 141(R) is effective for fiscal years
beginning after December 15, 2008, and is to be applied prospectively as of the beginning of the fiscal year in
which the statement is applied. Early adoption is not permitted. The impact of SFAS 141(R) on the financial
position, results of operations or cash flows will depend upon the nature, terms, and size of the acquisitions we
consummate after the effective date.

In February 2007 the FASB issued SFAS 159, “The Fair Value Option for Financial Assets and Financial
Liabilities” (“SFAS 159”). SFAS 159 permits companies to choose to measure many financial instruments and
certain other items at fair value. SFAS 159 seeks to improve the overall quality of financial reporting by
providing companies the opportunity to mitigate volatility in reported earnings caused by measuring related
assets and liabilities differently without having to apply complex hedge accounting provisions. SFAS 159 is
effective for fiscal years beginning after November 15, 2007. The adoption of this statement did not have a
material impact on our financial position, results of operations or cash flows.

In September 2006 the FASB issued SFAS 157, “Fair Value Measurements” (“SFAS 157”). SFAS 157
defines fair value, establishes a framework for measuring fair value and requires enhanced disclosures about fair
value measurements. SFAS 157 requires companies to disclose the fair value of its financial instruments
according to a fair value hierarchy (i.e., levels 1, 2, and 3, as defined). Additionally, companies are required to
provide enhanced disclosure regarding instruments in the level 3 category, including a reconciliation of the
beginning and ending balances separately for each major category of assets and liabilities. SFAS 157 is effective

26

for financial statements issued for fiscal years beginning after November 15, 2007 and interim periods within
those fiscal years. In February 2008, the FASB issued Staff Position 157-2, “Effective Date of FASB Statement
No. 157” (“FSP 157-2”) which delays the effective date of SFAS 157 for nonfinancial assets and nonfinancial
liabilities, except for items that are recognized or disclosed at fair value in the financial statements on a recurring
basis. The adoption of SFAS 157 for financial assets and financial liabilities did not have an impact on our
Condensed Consolidated Financial Statements. The full adoption of SFAS 157 in 2009 for nonfinancial assets
and nonfinancial liabilities is also not expected to have a significant impact on our financial position, results of
operations or cash flows.

Item 7A. Quantitative and Qualitative Disclosure About Market Risk

We transact business in various foreign countries, and from time to time settle our transactions in foreign
currencies. We have established a program that utilizes foreign currency forward contracts to offset the risk
associated with the effects of certain foreign currency exposures. These contracts are not used for trading or for
speculative purposes. By design these contracts are not designated as hedges as defined by SFAS 133; therefore,
unrealized gains or losses on these contracts are recorded in net income. Our foreign currency exposures
typically arise from sales contracts denominated in Canadian currency, for which there is exposure associated
with potential foreign currency rate changes occurring between the contract date and the date when the payments
are received. Under this program, increases or decreases in our foreign currency exposures are offset by gains or
losses on the foreign currency forward contracts, to mitigate the possibility of foreign currency transaction gains
or losses.

At December 31, 2008, we had open sales contracts of CAD$31 million, of which CAD$16 million was
recorded in trade receivables or costs and earnings in excess of billings. To offset our exposure to foreign
currency fluctuations in these transactions, we held foreign currency forward contracts with a notional value of
CAD$21 million that have varying maturities of between 1 and 9 months. Management believes that the impact
of a near-term 10% appreciation or depreciation of the U.S. dollar relative to the Canadian dollar would not have
a significant effect on our financial position, results of operations, or cash flows.

We are exposed to cash flow and fair value risk due to changes in interest rates with respect to certain
portions of our debt. The debt subject to changes in interest rates is our $150.0 million revolving credit line
($82.1 million outstanding as of December 31, 2008). Management believes our current risk exposure to interest
rate movements to be immaterial.

Additional information required by this item is set forth in “Item 7—Management’s Discussion and

Analysis of Financial Condition and Results of Operations—Liquidity and Capital Resources.”

Item 8.

Financial Statements and Supplementary Financial Data

The Consolidated Financial Statements required by this item are included on pages F-1 to F-25. The
financial statement schedule required by this item is included on page S-1. The quarterly information required by
this item is included under the caption Quarterly Data (unaudited) in Note 17 of the Notes to Consolidated
Financial Statements as listed in Item 15 of Part IV of this Report.

Item 9.

Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

The information required by this item is included under the caption Independent Auditors in Northwest

Pipe’s Proxy Statement for its 2009 Annual Meeting of Shareholders and is incorporated herein by reference.

27

Item 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

As of December 31, 2008, an evaluation was carried out under the supervision and with the participation of
the Company’s management, including the Chief Executive Officer (“CEO”) and Chief Financial Officer
(“CFO”), of the effectiveness of our disclosure controls and procedures. Based on that evaluation, the CEO and
CFO have concluded that our disclosure controls and procedures are effective to ensure that information required
to be disclosed by us in reports that we file or submit under the Securities Exchange Act of 1934 is recorded,
processed, summarized and reported within the time periods specified in Securities and Exchange Commission
rules and forms, and that such information is accumulated and communicated to our management, including our
CEO and CFO, as appropriate, to allow timely decisions regarding required disclosure.

Changes in Internal Control Over Financial Reporting

There was no change in our internal control over financial reporting that occurred during our last fiscal
quarter that has materially affected or is reasonably likely to materially affect our internal control over financial
reporting.

Management’s Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial
reporting, as such term is defined in Exchange Act Rule 13a-15(f). Under the supervision and with the
participation of our management, including our CEO and CFO, we conducted an evaluation of the effectiveness
of our internal control over financial reporting based on the framework in Internal Control—Integrated
Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on our
evaluation under the framework in Internal Control—Integrated Framework, our management concluded that our
internal control over financial reporting was effective as of December 31, 2008.

Our independent registered public accounting firm, Deloitte & Touche LLP, has issued an audit report on

our internal control over financial reporting.

28

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of
Northwest Pipe Company
Vancouver, Washington

We have audited the internal control over financial reporting of Northwest Pipe Company and subsidiaries
(the “Company”) as of December 31, 2008, based on criteria established in Internal Control—Integrated
Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission. The
Company’s management is responsible for maintaining effective internal control over financial reporting and for
its assessment of the effectiveness of internal control over financial reporting, included in the accompanying
“Management Report on Internal Control over Financial Reporting”. Our responsibility is to express an opinion
on the Company’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight
Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance
about whether effective internal control over financial reporting was maintained in all material respects. Our
audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a
material weakness exists, testing and evaluating the design and operating effectiveness of internal control based
on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We
believe that our audit provides a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed by, or under the supervision of,
the company’s principal executive and principal financial officers, or persons performing similar functions, and
effected by the company’s board of directors, management, and other personnel to provide reasonable assurance
regarding the reliability of financial reporting and the preparation of financial statements for external purposes in
accordance with generally accepted accounting principles. A company’s internal control over financial reporting
includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail,
accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable
assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance
with generally accepted accounting principles, and that receipts and expenditures of the company are being made
only in accordance with authorizations of management and directors of the company; and (3) provide reasonable
assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the
company’s assets that could have a material effect on the financial statements.

Because of the inherent limitations of internal control over financial reporting, including the possibility of
collusion or improper management override of controls, material misstatements due to error or fraud may not be
prevented or detected on a timely basis. Also, projections of any evaluation of the effectiveness of the internal
control over financial reporting to future periods are subject to the risk that the controls may become inadequate
because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, the Company maintained, in all material respects, effective internal control over financial
reporting as of December 31, 2008, based on the criteria established in Internal Control—Integrated Framework
issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board
(United States), the consolidated financial statements and financial statement schedule as of and for the year
ended December 31, 2008, of the Company and our report dated March 12, 2009, expressed an unqualified
opinion on those financial statements and financial statement schedule.

/s/ Deloitte & Touche LLP
Portland, Oregon
March 12, 2009

Item 9B. Other Information

None.

29

Item 10. Directors and Executive Officers of the Registrant

PART III

The following sets forth the names and other required information of our current directors and officers.

Officers

Brian W. Dunham
President and
Chief Executive Officer
1990*

Stephanie J. Welty
Senior Vice President
Chief Financial Officer
2007*

Robert L. Mahoney
Senior Vice President
President, Tubular Products Group
1992*

Gary A. Stokes
Senior Vice President
President, Water Transmission Group
1987*

Greg Carrier
Vice President
1996*

Winsor J.E. Jenkins
Vice President
1998*

Gary R. Stone
Vice President
1991*

Board of Directors

William R. Tagmyer
Chairman of the Board
Northwest Pipe Company
Portland, Oregon
1986*

Brian W. Dunham
President and Chief Executive Officer
Northwest Pipe Company
Portland, Oregon
1995*

Michael C. Franson
Managing Director
St. Charles Capital
Denver, Colorado
2007*

Wayne B. Kingsley
Chairman of the Board
American Waterways, Inc.
Portland, Oregon
1987*

Keith R. Larson
Vice President
Intel Corporation
Portland, Oregon
2007*

Richard A. Roman
President
Columbia Ventures Corporation
Vancouver, Washington
2003*

* Year joined Company.

* Year joined board.

The additional information required by this item is included under the captions Election of Directors,
Executive Officers and Section 16(a) Beneficial Ownership Reporting Compliance in Northwest Pipe’s Proxy
Statement for its 2009 Annual Meeting of Shareholders and is incorporated herein by reference. Management has
adopted a Code of Ethics that applies to our Chief Executive Officer, Chief Financial Officer, Corporate
Controller and Operations Controller. A copy of the Code of Ethics can be found on our website at
www.nwpipe.com. None of the material on our website is part of this Form 10-K. If there is any waiver from any
provision from the code of ethics for our Executive Officers, we will disclose the nature of such waiver on our
website or in a current report on Form 8-K.

30

Item 11. Executive Compensation

The information required by this item is included under

Compensation Discussion and Analysis and Compensation Committee Report
Statement for its 2009 Annual Meeting of Shareholders and is incorporated herein by reference.

the captions Executive Compensation,
in Northwest Pipe’s Proxy

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder

Matters

The information required by this item is included under the caption Stock Owned by Management and
Principal Shareholders in Northwest Pipe’s Proxy Statement for its 2009 Annual Meeting of Shareholders and is
incorporated herein by reference. Information with respect to equity compensation plans is included under the
caption Equity Compensation Plan Information in Northwest Pipe’s Proxy Statement for its 2009 Annual
Meeting of Shareholders and is incorporated herein by reference.

Item 13. Certain Relationships and Related Transactions

The information required by this item is included under the captions Certain Relationships and Related
Transactions and Election of Directors in Northwest Pipe’s Proxy Statement for its 2009 Annual Meeting of
Shareholders and is incorporated herein by reference.

Item 14. Principal Accountant Fees and Services

The information required by this item is included under the caption Independent Registered Public
Accounting Firm in Northwest Pipe’s Proxy Statement for its 2009 Annual Meeting of Shareholders and is
incorporated herein by reference.

31

Item 15. Exhibits and Financial Statement Schedule

(a) (1) Financial Statements

PART IV

The Financial Statements,

together with the reports

thereon of Deloitte & Touche LLP and

PricewaterhouseCoopers LLP are included on the pages indicated below.

Reports of Independent Registered Public Accounting Firms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Consolidated Statements of Income for the years ended December 31, 2008, 2007 and 2006 . . . . . . . . . . . .

Consolidated Balance Sheets as of December 31, 2008 and 2007 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Consolidated Statements of Stockholders’ Equity and Comprehensive Income for the years ended

December 31, 2008, 2007 and 2006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Consolidated Statements of Cash Flows for the years ended December 31, 2008, 2007 and 2006 . . . . . . . . .

Notes to Consolidated Financial Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(a) (2) Financial Statement Schedule

The following schedule is filed herewith:

Page

F-1

F-3

F-4

F-5

F-6

F-7

Page

Schedule II Valuation and Qualifying Accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

S-1

Schedules not listed above have been omitted because the information required to be set forth therein is not

applicable or is included in the Consolidated Financial Statements or notes thereto.

32

(a) (3) Exhibits included herein:

Exhibit
Number

3.1

3.2

3.3

3.4

4.1

10.1

10.2

10.3

10.4

10.5

10.6

10.7

10.8

Description

Second Restated Articles of Incorporation, incorporated by reference to Exhibits to the Company’s
Registration Statement on Form S-1, as amended, effective November 30, 1995, Commission
Registration No. 33-97308 (“the S-1”)

First Amendment to Second Restated Articles of Incorporation, incorporated by reference to Exhibits
to the Company’s Registration Statement of Form S-3, as amended, effective November 1, 2006,
Commission Registration No. 333-137923 (“the S-3”)

Second Amended and Restated Bylaws, incorporated by reference to Exhibits to the S-1

First Amendment to Second Amended and Restated Bylaws of Northwest Pipe Company,
incorporated by reference to Exhibits to the Company’s Report on Form 8-K as filed with the
Securities and Exchange Commission on November 19, 2007

Form of Rights Agreement dated as of June 28, 1999 between the Company and ChaseMellon
Shareholder Services, L.L.C. as Rights Agent, incorporated by reference to Exhibits 1.1 to the
Company’s Registration Statement on Form 8-A as filed with the Securities and Exchange
Commission on July 1, 1999

1995 Stock Option Plan for Nonemployee Directors, incorporated by reference to Exhibits to the
S-1*

Amended 1995 Stock Incentive Plan, incorporated by reference to Exhibit A to the Company’s Proxy
Statement for its 2000 Annual meeting of Shareholders, as filed with the Securities and Exchange
Commission on March 31, 2000*

Northwest Pipe NQ Retirement Savings Plan, dated July 1, 1999, incorporated by reference to
Exhibits to the Company’s Quarterly Report Form 10-Q for the quarter ended June 30, 2000, as filed
with the Securities and Exchange Commission on August 11, 2000*

General Electric Capital Corporation Master Lease Agreement, dated September 26, 2000,
incorporated by reference to Exhibits to the Company’s Quarterly Report Form 10-Q for the quarter
ended September 30, 2000 as filed with the Securities and Exchange Commission on November 13,
2000

General Electric Capital Corporation Master Lease Agreement, dated May 30, 2001, incorporated by
reference to Exhibits to the Company’s Quarterly Report on Form 10-Q for the quarter ended June
30, 2001 as filed with the Securities and Exchange Commission on August 14, 2001

Long Term Incentive Agreement, incorporated by reference to Exhibits to the Company’s Quarterly
Report on Form 10-Q for the quarter ended June 30, 2005 as filed with the Securities and Exchange
Commission on August 8, 2005*

Amended and Restated Credit Agreement dated May 31, 2007, by and among Northwest Pipe
Company, Bank of America, N.A., Union Bank of California, N.A. and HSBC USA, National
Association, incorporated by reference to the Company’s Current Report of Form 8-K, as filed with
the Securities and Exchange Commission on June 6, 2007

Second Amended and Restated Intercreditor and Collateral Agency Agreement dated as of May 31,
2007 by and between Northwest Pipe Company, Bank of America, N.A., Union Bank of California,
N.A., HSBC USA, National Association, and Prudential Investment Management, Inc. and certain of
its affiliates, incorporated by reference to the Company’s Current Report on Form 8-K, as filed with
the Securities and Exchange Commission on June 6, 2007

33

Exhibit
Number

10.9

10.10

10.11

10.12

10.13

10.14

10.15

10.16

10.17

10.18

10.19

14.1

Description

Amended and Restated Note Purchase and Private Shelf Agreement dated as of May 31, 2007 by and
among Northwest Pipe Company, Prudential Investment Management, Prudential Retirement
Insurance and Annuity Company and Prudential Insurance Company of America and certain
affiliates, incorporated by reference to the Company’s Current Report on Form 8-K, as filed with the
Securities and Exchange Commission on June 6, 2007

Northwest Pipe Company 2007 Stock Incentive Plan, incorporated by reference to Appendix A to the
Company’s Definitive Proxy Statement dated April 20, 2007, as filed with the Securities and
Exchange Commission on April 26, 2007*

Separation agreement with John Murakami, Vice President and Chief Financial Officer dated January
14, 2008, incorporated by reference to Exhibits to the Company’s Annual Report on Form 10-K for
the year ended December 31, 2007 as filed with the Securities and Exchange Commission on
March 17, 2008*

Second Amendment to Amended and Restated Credit Agreement dated October 14, 2008 by and
among Northwest Pipe Company, Bank of America, N.A., as Administrative Agent, and Union Bank
of California, N.A. (certain schedules to the Agreement have been omitted), incorporated by
reference to the Company’s Current Report on Form 8-K, as filed with the Securities and Exchange
Commission on October 20, 2008

First Amendment and Limited Waiver to the Amended and Restated Note Purchase and Private Shelf
Agreement dated as of October 14, 2008 by and among Northwest Pipe Company and Prudential
Investment Management, Inc. and certain affiliates (certain schedules to the Agreement have been
omitted), incorporated by reference to the Company’s Current Report on Form 8-K, as filed with the
Securities and Exchange Commission on October 20, 2008

First Amendment to and Consent under the Second Amended and Restated Intercreditor and
Collateral Agency Agreement dated as of October 14, 2008 by and between Northwest Pipe
Company, Bank of America, N.A., Union Bank of California, N.A., U.S. National Bank, National
Association and Prudential Investment Management, Inc. and certain of its affiliates (certain
schedules to the Agreement have been omitted), incorporated by reference to the Company’s Current
Report on Form 8-K, as filed with the Securities and Exchange Commission on October 20, 2008

Form of Restricted Stock Unit Agreement, incorporated by reference to Exhibits to the Company’s
Quarterly Report on Form 10-Q for the quarter ended September 30, 2008 as filed with the Securities
and Exchange Commission on November 11, 2008*

Form of Performance Share Agreement, incorporated by reference to Exhibits to the Company’s
Quarterly Report on Form 10-Q for the quarter ended September 30, 2008 as filed with the Securities
and Exchange Commission on November 11, 2008*

Amended and Restated Change in Control Agreement, dated December 31, 2008, between Northwest
Pipe Company and William R. Tagmyer, filed herewith*

Amended and Restated Change in Control Agreement, dated December 31, 2008, between Northwest
Pipe Company and Brian W. Dunham, filed herewith*

Form of Amended and Restated Change in Control Agreement, dated December 31, 2008, between
Northwest Pipe Company and Robert L. Mahoney, Gary A. Stokes, and Stephanie J. Welty, filed
herewith*

Code of Ethics for Senior Financial Officers, incorporated by reference to Exhibits to the Company’s
Annual Report on Form 10-K for the year ended December 31, 2003 as filed with the Securities and
Exchange Commission on March 12, 2004

34

Exhibit
Number

Description

16

18

21

23.1

23.2

31.1

31.2

32.1

32.2

Letter re change in certifying accountant, incorporated by reference to Exhibit 16.1 to the Company’s
Current Report on Form 8-K dated July 13, 2007, as filed with the Securities and Exchange
Commission on July 18, 2007

Preferability letter, dated May 4, 2006 from PricewaterhouseCoopers LLP, incorporated by reference
to Exhibits to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2006
as filed with the Securities and Exchange Commission on May 9, 2006.

Subsidiaries of the Registrant, filed herewith

Consent of Deloitte & Touche LLP, filed herewith

Consent of PricewaterhouseCoopers LLP, filed herewith

Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002,
filed herewith

Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002,
filed herewith

Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-
Oxley Act of 2002, filed herewith

Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-
Oxley Act of 2002, filed herewith

* This exhibit constitutes a management contract or compensatory plan or arrangement.

35

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of
Northwest Pipe Company
Vancouver, Washington

We have audited the accompanying consolidated balance sheets of Northwest Pipe Company and
subsidiaries (the “Company”) as of December 31, 2008 and 2007, and the related consolidated statements of
income, stockholders’ equity, and cash flows for each of the years then ended. Our audits also included the
financial statement schedule for the years ended December 31, 2008 and 2007, listed in the Table of Contents at
Item 15. These financial statements and financial statement schedule are the responsibility of the Company’s
management. Our responsibility is to express an opinion on the financial statements and financial statement
schedule based on our audits. The consolidated statements of income, of stockholders’ equity and comprehensive
income and of cash flows of the Company for the year ended December 31 2006, and the 2006 financial
statement schedule, before the retrospective adjustments for the change in segments of the Company discussed in
Note 16 to the consolidated financial statements, were audited by other auditors whose report, dated March 30,
2007, expressed an unqualified opinion on those statements.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight
Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance
about whether the financial statements are free of material misstatement. An audit includes examining, on a test
basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by management, as well as evaluating
the overall financial statement presentation. We believe that our audits provide a reasonable basis for our
opinion.

In our opinion, such consolidated financial statements present fairly, in all material respects, the financial
position of Northwest Pipe Company and subsidiaries as of December 31, 2008 and 2007, and the results of their
operations and their cash flows for each of the years then ended, in conformity with accounting principles
generally accepted in the United States of America. Also, in our opinion, such 2008 and 2007 financial statement
schedule, when considered in relation to the basic consolidated financial statements taken as a whole, present
fairly, in all material respects, the information set forth therein.

We have also audited the retrospective adjustments to the 2006 consolidated financial statements for the
change in segments of the Company discussed in Note 16 to the consolidated financial statements. Our
procedures included (1) comparing the adjustment amounts of the Company’s segment net sales, gross profit,
depreciation and amortization of property and equipment, and capital expenditures to the Company’s underlying
analysis and (2) testing the mathematical accuracy of the reconciliations of the segment amounts to the
consolidated financial statements. In our opinion, such retrospective adjustments are appropriate and have been
properly applied. However, we were not engaged to audit, review, or apply any procedures to the 2006
consolidated financial statements of the Company other than with respect to the retrospective adjustments and,
accordingly, we do not express an opinion or any other form of assurance on the 2006 consolidated financial
statements taken as a whole.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board
(United States), the Company’s internal control over financial reporting as of December 31, 2008, based on the
criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring
Organizations of the Treadway Commission and per our report dated March 12, 2009, expressed an unqualified
opinion on the Company’s internal control over financial reporting.

/s/ Deloitte & Touche LLP
Portland, Oregon
March 12, 2009

F-1

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Shareholders of
Northwest Pipe and Company

in our opinion,

In our opinion, the consolidated statements of income, of stockholders equity and comprehensive income,
and of cash flows of Northwest Pipe Company and Subsidiaries (the “Company”) for the year ended
December 31, 2006, before the effects of the adjustments to retrospectively change the reporting segment
described in Note 16, present fairly, in all material respects, the results of their operations and their cash flows for
the year ended December 31, 2006, in conformity with accounting principles generally accepted in the United
States of America (the 2006 financial statements before the effects of the adjustments discussed in Note 16 are
not presented herein). In addition,
the financial statement schedule for the year ended
December 31, 2006 presents fairly, in all material respects, the information set forth therein when read in
conjunction with the related consolidated financial statements before the effects of the adjustments described
above. These financial statements and financial statement schedule are the responsibility of the Company’s
management. Our responsibility is to express an opinion on these financial statements and financial statement
schedule based on our audit. We conducted our audit, before the effects of the adjustments described above, of
these statements in accordance with the standards of the Public Company Accounting Oversight Board (United
States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether
the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and
significant estimates made by management, and evaluating the overall financial statement presentation. We
believe that our audit provides a reasonable basis for our opinion.

We were not engaged to audit, review, or apply any procedures to the adjustments to retrospectively change
the reporting segments described in Note 16 and, accordingly, we do not express an opinion or any other form of
assurance about whether such adjustments are appropriate and have properly applied. Those adjustments were
audited by other auditors.

/s/ PricewaterhouseCoopers LLP
Portland, Oregon
March 30, 2007

F-2

NORTHWEST PIPE COMPANY AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF INCOME
(In thousands, except per share amounts)

Year Ended December 31,

2008

2007

2006

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cost of sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$439,735
346,077

$382,824
312,609

$346,591
289,878

Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selling, general and administrative expense . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gain on sale of assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest expense, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provision for income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

93,658
35,166
—

58,492
6,409

52,083
19,782

70,215
30,703
—

39,512
6,792

32,720
11,888

56,713
27,385
(7,674)

37,002
6,700

30,302
10,283

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 32,301

$ 20,832

$ 20,019

Basic earnings per share . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diluted earnings per share . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

3.53

3.46

$

$

2.32

2.26

$

$

2.80

2.69

Shares used in per share calculations:

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9,148

9,344

8,962

9,235

7,152

7,446

The accompanying notes are an integral part of these consolidated financial statements.

F-3

NORTHWEST PIPE COMPANY AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
(Dollar amounts in thousands)

December 31,

2008

2007

Assets

Current assets:

Cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trade and other receivables, less allowance for doubtful accounts of $1,214 and
$1,129 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Costs and estimated earnings in excess of billings on uncompleted contracts . . .
Inventories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Refundable income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prepaid expenses and other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total current assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Property and equipment, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Goodwill
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

90

$

234

75,923
106,234
87,348
3,412
4,535
4,489

282,031
194,035
21,451
11,917

49,300
121,058
62,805
2,885
4,061
3,541

243,884
179,977
21,451
8,251

Total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$509,434

$453,563

Liabilities and Stockholders’ Equity

Current liabilities:

Current portion of long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current portion of capital lease obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accounts payable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Billings in excess of costs and estimated earnings on uncompleted contracts . . .

$

Total current liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Note payable to financial institution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long-term debt, less current portion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Capital lease obligations, less current portion . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pension and other long-term liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5,714
829
34,109
10,111
8,020

58,783
82,065
29,215
3,164
37,776
6,870

$

5,071
780
41,684
12,311
2,514

62,360
54,415
34,929
3,992
33,773
7,812

Total liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

217,873

197,281

Commitments and contingencies (Notes 8 and 14)

Stockholders’ equity:

Preferred stock, $.01 par value, 10,000,000 shares authorized, none issued or

outstanding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

—

—

Common stock, $.01 par value, 15,000,000 shares authorized, 9,195,400 and

9,056,251 shares issued and outstanding . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additional paid-in-capital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Retained earnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accumulated other comprehensive loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

92
106,129
188,263
(2,923)

91
101,749
155,962
(1,520)

Total stockholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

291,561

256,282

Total liabilities and stockholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . .

$509,434

$453,563

The accompanying notes are an integral part of these consolidated financial statements.

F-4

NORTHWEST PIPE COMPANY AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY
AND COMPREHENSIVE INCOME
(Dollar amounts in thousands)

Common Stock

Shares

Amount

Additional
Paid-in
Capital

Retained
Earnings

Balances, January 1, 2006 . . . . . . . . . . . . . . 6,839,962
Net income . . . . . . . . . . . . . . . . . . . . . . . . . .
Other comprehensive income:

$68

$ 42,973 $118,498
20,019

Accumulated
Other
Comprehensive
Loss

$(2,074)

Total
Stockholders’
Equity

$159,465
20,019

Minimum pension liability adjustment,
net of tax expense of $203 . . . . . . . .

Comprehensive income . . . . . . . . . . . . . . . .
SAB 108 adjustment
. . . . . . . . . . . . . . . . . .
Issuance of common stock under stock

option plans . . . . . . . . . . . . . . . . . . . . . . .
Tax benefit from stock option plans . . . . . .
Proceeds from sale of common stock, net of

82,897

1

issuance costs of $381 . . . . . . . . . . . . . . . 1,955,000

20

Stock based compensation expense . . . . . . .

Balances, December 31, 2006 . . . . . . . . . . . 8,877,859
Net income . . . . . . . . . . . . . . . . . . . . . . . . . .
Other comprehensive income:

89

Pension liability adjustment, net of tax
expense of $103 . . . . . . . . . . . . . . . .

Comprehensive income . . . . . . . . . . . . . . . .
Issuance of common stock under stock

option plans . . . . . . . . . . . . . . . . . . . . . . .
Tax benefit from stock option plans . . . . . .
Stock based compensation expense . . . . . . .

178,392

2

551
491

53,035
253

97,303

2,903
1,246
297

378

(3,387)

135,130
20,832

(1,696)

176

Balances, December 31, 2007 . . . . . . . . . . . 9,056,251
Net income . . . . . . . . . . . . . . . . . . . . . . . . . .
Other comprehensive income:

91

101,749

155,962
32,301

(1,520)

Pension liability adjustment, net of tax
benefit of $823 . . . . . . . . . . . . . . . . .

Comprehensive income . . . . . . . . . . . . . . . .
Issuance of common stock under stock

option plans . . . . . . . . . . . . . . . . . . . . . . .
Tax benefit from stock option plans . . . . . .
Stock based compensation expense . . . . . . .

139,149

1

2,285
1,070
1,025

(1,403)

378

20,397
(3,387)

552
491

53,055
253

230,826
20,832

176

21,008

2,905
1,246
297

256,282
32,301

(1,403)

30,898

2,286
1,070
1,025

Balances, December 31, 2008 . . . . . . . . . . . 9,195,400

$92

$106,129 $188,263

$(2,923)

$291,561

The accompanying notes are an integral part of these consolidated financial statements.

F-5

NORTHWEST PIPE COMPANY AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
(Dollar amounts in thousands)

Year Ended December 31,
2007

2006

2008

Cash Flows From Operating Activities:

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments to reconcile net income to net cash provided by operating

$ 32,301

$ 20,832

$ 20,019

activities:

Depreciation and amortization of property and equipment . . . . . . . . . . . . . .
Amortization of intangible assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Amortization of debt issuance costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred gain on sale-leaseback of equipment . . . . . . . . . . . . . . . . . . . . . . .
(Gain) loss on disposal of property and equipment . . . . . . . . . . . . . . . . . . . .
Stock based compensation expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tax benefit from stock option plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Excess tax benefit from stock option plans . . . . . . . . . . . . . . . . . . . . . . . . . .

4,966
120
378
3,529
—
4,185
1,025
1,070
(828)

5,133
—
349
3,347
—
397
297
1,246
(801)

3,782
—
295
6,029
(1,304)
(8,193)
253
491
(285)

Changes in operating assets and liabilities:

Trade and other receivables, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Costs and estimated earnings in excess of billings on uncompleted

contracts, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inventories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Refundable income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prepaid expenses and other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accounts payable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued and other liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(26,623)

19,125

(2,514)

20,330
(24,543)
(527)
(1,715)
(7,575)
(6,152)

(44,191)
16,495
3,004
(4,346)
(9,181)
7,616

(1,192)
(30,072)
(4,094)
(2,357)
21,951
(847)

Net cash (used in) provided by operating activities . . . . . . . . . . . . . . .

(59)

19,322

1,962

Cash Flows From Investing Activities:

Additions to property and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other investing activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from sale of property and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . .

(21,612)
(2,780)
10

(23,332)
(500)
48

(58,428)
—
10,414

Net cash used in investing activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(24,382)

(23,784)

(48,014)

Cash Flows From Financing Activities:

Proceeds from sale of common stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Payments on long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net borrowings under notes payable to financial institutions . . . . . . . . . . . . . . . .
Payments of debt issuance costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Borrowings from capital lease obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Payments on capital lease obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tax benefit from stock option plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2,286
(5,071)
27,650
(617)
—
(779)
828

2,905
(13,571)
11,415
(431)
—
(682)
801

53,607
(9,286)
1,647
—
4,000
(75)
285

Net cash provided by financing activities . . . . . . . . . . . . . . . . . . . . . . . . . . .

24,297

437

50,178

Net increase (decrease) in cash and cash equivalents . . . . . . . . . . . . . . . . . .
Cash and cash equivalents, beginning of period . . . . . . . . . . . . . . . . . . . . . . . . . .

(144)
234

(4,025)
4,259

4,126
133

Cash and cash equivalents, end of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

90

$

234

$ 4,259

Supplemental Disclosure of Cash Flow Information:

Cash paid during the period for interest, net of amounts capitalized . . . . . . . . . .
Cash paid during the period for income taxes (net of tax refunds of $363, $956,
and $262) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 6,323

$ 6,990

$ 7,039

15,735

3,364

7,992

Non-cash investing and financing activities:

Operating lease converted to capital lease . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued property and equipment purchases . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ — $ 1,447
—

1,607

$ —
—

The accompanying notes are an integral part of these consolidated financial statements.

F-6

NORTHWEST PIPE COMPANY AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

The consolidated financial statements include the accounts of Northwest Pipe Company and its wholly
owned subsidiaries (the “Company”). All inter-company balances have been eliminated. The Company has water
transmission manufacturing facilities in Portland, Oregon; Denver, Colorado; Adelanto, California; Parkersburg,
West Virginia; Saginaw, Texas; Pleasant Grove, Utah; and Monterrey, Mexico. Tubular products manufacturing
facilities are located in Atchison, Kansas; Houston, Texas; and Bossier City, Louisiana.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the
United States requires management to make estimates and assumptions that affect the reported amounts of assets
and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the
reported amounts of revenues and expenses during the reporting period. The Company bases its estimates on
historical experience and on various assumptions that are believed to be reasonable under the circumstances at
that time. On an on-going basis, the Company evaluates all of its estimates, including those related to revenue
recognition, allowance for doubtful accounts, warranties, intangible assets, accrued liabilities, income taxes, and
contingencies and litigation. Actual results could differ from those estimates under different assumptions or
conditions.

Cash and Cash Equivalents

Cash and cash equivalents consist of cash and short term highly liquid investments with remaining

maturities of three months or less when purchased.

Allowance for Doubtful Accounts and Product Warranties

The Company maintains allowances for estimated losses resulting from the inability of its customers to
together with reserves for warranty claims, based on
make required payments and contract disputes,
management’s judgment. An allowance is recorded for based on a variety of factors, including the historical
collection experience with individual customers. At least monthly, the Company reviews past due balances to
identify the reasons for non-payment. The Company will write off a receivable account once the account is
deemed uncollectible. The Company believes the reported allowances at December 31, 2008 and 2007 are
adequate. If the customers’ financial conditions were to deteriorate resulting in their inability to make payments,
or if contract disputes or warranty claims were to escalate, additional allowances may need to be recorded, which
would result in additional expenses being recorded for the period in which such determination was made.

Inventories

Inventories are stated at the lower of cost or market. Raw material inventories of steel are stated at cost
either on a specific identification basis or on an average cost basis. All other raw material inventories, as well as
supplies, are stated on an average cost basis. Finished goods are stated at cost using the first-in, first-out method
of accounting.

Property and Equipment

Property and equipment is stated at cost. Maintenance and repairs are expensed as incurred and costs of
improvements and renewals, including interest where applicable, are capitalized. Depreciation and amortization
on the book value in excess of the salvage value are determined by the units of production method for most
equipment, and for the remaining assets by the straight-line method based on the estimated useful lives of the
related assets. Upon disposal, costs and related accumulated depreciation of the assets are removed from the

F-7

accounts and resulting gains or losses are reflected in operations. The Company leases certain equipment under
long-term capital leases, which are being amortized on a straight-line basis over the shorter of the lease terms or
the estimated useful lives of the assets.

Estimated useful lives by major classes of property and equipment are as follows:

Land improvements . . . . . . . . . . . . . .
Buildings . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
Equipment

20 – 30 years
20 – 40 years
3 – 18 years

Goodwill

Goodwill related to the Company’s Tubular Products Group of $21.5 million at December 31, 2008 and
2007 represents the excess of cost over the assigned value of the net assets in connection with all acquisitions.
Goodwill is reviewed for impairment in accordance with Statement of Financial Accounting Standard (“SFAS”)
142 “Goodwill and Other Intangible Assets.” SFAS 142 requires that goodwill and intangible assets with
indefinite lives are no longer amortized but are reviewed for impairment annually or more frequently if
impairment indicators arise. The Company reviews for impairment by comparing the fair value of the Tubular
Products reporting unit, as measured by discounted cash flows, market multiples based on earnings, and other
valuation methodologies,
to the carrying value. As required under SFAS 142, an annual assessment for
impairment of the goodwill was performed as of December 31, 2008 and 2007; based on the analysis, the
Company believes no impairment of goodwill exists.

Workers Compensation Insurance

The Company is self-insured, or maintains high deductible policies, for losses and liabilities associated with
workers compensation claims. Losses are accrued based upon the Company’s estimates of the aggregate liability
for claims incurred using historical experience and certain actuarial assumptions followed in the insurance
industry. There is no assurance that such insurance coverage will adequately protect the Company against
liability from all potential consequences.

Pension Benefits

The Company has two defined benefit pension plans that are frozen. The Company funds these plans to
cover current plan costs plus amortization of the unfunded plan liabilities. To record these obligations,
management uses estimates relating to assumed inflation, investment returns, mortality, and discount rates.
Management reviews all of these assumptions on an annual basis.

Derivative Instruments.

The Company conducts business in various foreign countries, and from time to time settles transactions in
foreign currencies. The Company has established a program that utilizes foreign currency forward contracts to
offset the risk associated with the effects of certain foreign currency exposures, typically arising from sales
contracts denominated in Canadian currency. At December 31, 2008 these foreign currency forward contracts
were consistent with the Company’s strategy for financial risk management; however, they do not meet the
conditions under SFAS 133 “Accounting for Derivative Instruments and Hedging Activities”, as amended
(“SFAS 133”) to qualify for hedge accounting treatment. Consequently, these instruments are remeasured at fair
value on each balance sheet date and resulting gains and losses are recognized in net income.

Foreign Currency Transactions

Foreign currency transactions are recorded in accordance with SFAS 52 “Foreign Currency Translation”. Foreign
currency transactions are included in net income.

F-8

Revenue Recognition

Revenue from construction contracts in the Company’s water transmission segment is recognized on the
percentage-of-completion method, measured by the percentage of costs incurred to date compared to the
estimated total costs of each contract. Estimated total costs are reviewed monthly and updated by project
management and operations personnel for substantially all projects that are fifty percent or more complete,
except that major projects, usually over $5.0 million, are reviewed earlier if sufficient production has been
completed to provide enough information to revise the original estimated total cost of the project. All cost
revisions that result in the gross profit as a percent of sales increasing or decreasing by more than two percent are
reviewed by senior management personnel. Provisions for estimated losses on uncompleted contracts are made in
the period such estimated losses are known. Changes in job performance,
job conditions and estimated
profitability, including those arising from contract penalty provisions, and final contract settlements may result in
revisions to costs and income and are recognized in the period in which the revisions are determined. Contract
costs include all direct material and labor costs and those indirect costs related to contract performance, such as
indirect labor, supplies, tools, repairs and depreciation. Selling, general and administrative costs are charged to
expense as incurred. While certain contract costs are reported in the consolidated statements of income as selling,
general and administrative costs, they are included in total contract costs incurred to date used to recognize
revenue.

Revenue from the Company’s tubular products segment is recognized when all four of the following criteria
have been satisfied: persuasive evidence of an arrangement exists; delivery has occurred; the price is fixed or
determinable; and collectibility is reasonably assured.

Income Taxes

The Company records deferred income tax assets and liabilities based upon the difference between the
financial statement and income tax bases of assets and liabilities using enacted income tax rates. Valuation
allowances are established when necessary to reduce deferred income tax assets to the amount expected to be
realized. Income tax expense is the tax payable for the period and the change during the period in net deferred
income tax assets and liabilities.

In July 2006, the Financial Accounting Standards Board (“FASB”) issued Financial Interpretation 48,
“Accounting for Uncertainty in Income Taxes” (“FIN 48”), which clarifies the accounting for uncertainty in
income taxes recognized in the financial statements in accordance with SFAS 109, “Accounting for Income
Taxes.” FIN 48 provides that a tax benefit from an uncertain tax position may be recognized when it is more
likely than not that the position will be sustained upon examination, including resolutions of any related appeals
or litigation processes, based on the technical merits.

Earnings per Share

Basic earnings per share is computed using the weighted average number of shares of common stock
outstanding during the period. Diluted earnings per share is computed using the weighted average number of
shares of common stock and dilutive common equivalent shares outstanding during the period. Dilutive common
equivalent shares outstanding include the dilutive effect of in-the-money options which are calculated based on
the average share price for each period using the treasury stock method. Under the treasury stock method, the
amount the option holder must pay for exercising stock options, the amount of compensation cost that the
Company has not yet recognized, and the amount of tax benefits that would be recorded in additional paid-in
capital when the award becomes deductible are assumed to be used to repurchase shares. Incremental shares of
195,139, 272,492 and 294,586 for the years ended December 31, 2008, 2007, and 2006, respectively, were used
in the calculations of diluted earnings per share. For the year ended December 31, 2008, 1,965 restricted stock
units were excluded from the computation of diluted earnings per share because the effect of their inclusion
would have been antidilutive. For the years ended December 31, 2007 and 2006, the calculation of diluted
earnings per share included all common equivalent shares.

F-9

Concentrations of Credit Risk

Financial instruments, which potentially subject the Company to concentrations of credit risk, consist
principally of trade receivables. Trade receivables are generally with a large number of customers, including
municipalities, manufacturers, distributors and contractors, dispersed across a wide geographic base. At
December 31, 2008, one customer accounted for 20% of total accounts receivable. No single customer balance
accounted for 10% or more of total accounts receivable at December 31, 2007.

Fair Value of Financial Instruments

The fair values of financial instruments are the amounts at which the instrument could be exchanged in a
current transaction between willing parties, other than in a forced or liquidation sale. The carrying amounts
reflected in the consolidated balance sheets for cash and cash equivalents, trade receivables, other current assets
and current liabilities approximate fair value because of the short maturity for these instruments. The fair value
approximates the carrying value of the Company’s borrowings under its long-term arrangements based upon
interest rates available for the same or similar loans.

Long-Lived Assets

Property and equipment are reviewed for impairment in accordance with SFAS 144, “Accounting for the
Disposal of Long-Lived Assets.” The Company assesses impairment of property and equipment whenever
changes in circumstances indicate that the carrying values of the assets may not be recoverable. The recoverable
value of long-lived assets is determined by estimating future undiscounted cash flows using assumptions about
the expected future operating performance of the Company. The estimates of undiscounted cash flows may differ
from actual cash flow due to, among other things, technological changes, economic conditions, or changes to
business operations. If the carrying value of the property and equipment will not be recoverable, an impairment
loss is calculated and recorded.

Share-based Compensation

In accordance with SFAS 123(R) “Share-Based Payment” (“SFAS 123(R)”), the Company recognizes the
compensation cost of employee services received in exchange for awards of equity instruments based on the
grant date estimated fair value of the awards. The Company recognizes compensation expense related to
performance awards based on the probable outcome of the performance conditions. Compensation cost is
recognized over the period during which the employee is required to provide service in exchange for the award,
and as forfeitures occur, the associated compensation cost recognized to date is reversed.

See Note 11 for further discussion of the Company’s share-based compensation.

Initial Adoption of Staff Accounting Bulletin No. 108

In September 2006, the SEC staff released Staff Accounting Bulletin No. 108, “Considering the Effects of
Prior Year Misstatements When Quantifying Misstatements in Current Year Financial Statements” (“SAB 108”).
SAB 108 established an approach that requires quantification of financial statement misstatements based on the
effect of the misstatements on each of the Company’s financial statements and the related financial statement
disclosures.

F-10

SAB 108 permitted public companies to initially apply its provisions either by (i) restating prior financial
statements as if the “dual approach” had always been used or (ii) recording the cumulative effect of initially
applying the “dual approach” as adjustments to the carrying values of assets and liabilities as of January 1, 2006
with an offsetting adjustment recorded to the opening balance of retained earnings. The Company elected to
record the effects of applying SAB 108 using the cumulative effect transition method. The following table
summarizes the effects of applying the guidance in SAB 108 through January 1, 2006 (in thousands). Amounts
shown reflect increases (decreases) in the related account balances:

Accrued liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inventories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Property and equipment, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Deferred income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Refundable income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Adjustment
at January 1,
2006

$ 3,008
(1,842)
(721)

(5,571)
1,906
278

Origination Period of Misstatement

Year ended December 31,

2005

$

598
116
(721)

(1,203)
185
278

2004

$ 326
(79)
—

(405)
156
—

2003 and
Prior

$ 2,084
(1,879)
—

(3,963)
1,565
—

Increase (decrease) in net income . . . . . . . . . . . . . . . . . . . . . . . . .

—

$ (740)

$(249)

$(2,398)

Decrease to retained earnings . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$(3,387)

The Company previously quantified these errors under the roll-over method and concluded they were
immaterial, individually and in the aggregate. With respect to accrued liabilities, the Company adjusted the
workers’ compensation accrual to more closely align with estimates provided by an actuary in each of the periods
prior to January 1, 2006, and adjusted property tax expense by $272,000 in 2005. With respect to inventory, the
Company adjusted amounts that had previously been capitalized as inventoriable. With respect to property and
equipment, net, the Company expensed internal costs of constructing assets used in the manufacturing process
that had previously been capitalized in error. Because of the errors described above, deferred and refundable
income taxes required adjustment by $2.2 million related to years prior to 2006. To record the initial application
of SAB 108, the Company recorded a $3.4 million adjustment to decrease retained earnings at January 1, 2006.

Recent Accounting and Reporting Developments

In March 2008 the FASB issued SFAS No. 161, “Disclosures about Derivative Instruments and Hedging
Activities, an amendment of FASB Statement No. 133” (“SFAS 161”). SFAS 161 amends and expands the
disclosure requirements of SFAS 133 with the intent to provide users of financial statements with an enhanced
understanding of: 1) How and why an entity uses derivative instruments; 2) How derivative instruments and
related hedged items are accounted for under SFAS 133 and its related interpretations and 3) How derivative
instruments and related hedged items affect an entity’s financial position, financial performance and cash flows.
This statement is effective for financial statements issued for fiscal years and interim periods beginning after
November 15, 2008, with early application encouraged. The adoption of SFAS 161 relates specifically to
disclosures, and will not have an impact on the Company’s financial position, results of operations or cash flows.

In December 2007 the “FASB” issued SFAS 141(R), “Business Combinations” (“SFAS 141(R)”), which
requires the acquiring entity in a business combination to recognize and measure all assets and liabilities assumed
in the transaction and any non-controlling interest in the acquiree at fair value as of the acquisition date. SFAS
141(R) also establishes guidance for the measurement of the acquirer shares issued in consideration for a
business combination, the recognition of contingent consideration, the accounting treatment for pre-acquisition
gain and loss contingencies, the treatment of acquisition related transaction costs, and the recognition of changes
in the acquirer’s income tax valuation allowance and deferred taxes. SFAS 141(R) is effective for fiscal years
beginning after December 15, 2008, and is to be applied prospectively as of the beginning of the fiscal year in

F-11

which the statement is applied. Early adoption is not permitted. The impact of SFAS 141(R) on the financial
position, results of operations or cash flows will depend upon the nature, terms, and size of the acquisitions the
Company consummates after the effective date.

In February 2007 the FASB issued SFAS 159, “The Fair Value Option for Financial Assets and Financial
Liabilities” (“SFAS 159”). SFAS 159 permits companies to choose to measure many financial instruments and
certain other items at fair value. SFAS 159 seeks to improve the overall quality of financial reporting by
providing companies the opportunity to mitigate volatility in reported earnings caused by measuring related
assets and liabilities differently without having to apply complex hedge accounting provisions. SFAS 159 is
effective for fiscal years beginning after November 15, 2007. The adoption of SFAS 159 on January 1, 2008, did
not have an impact on the Condensed Consolidated Financial Statements.

In September 2006 the FASB issued SFAS 157, “Fair Value Measurements” (“SFAS 157”). SFAS 157
defines fair value, establishes a framework for measuring fair value and requires enhanced disclosures about fair
value measurements. SFAS 157 requires companies to disclose the fair value of its financial instruments
according to a fair value hierarchy (i.e., levels 1, 2, and 3, as defined). Additionally, companies are required to
provide enhanced disclosure regarding instruments in the level 3 category, including a reconciliation of the
beginning and ending balances separately for each major category of assets and liabilities. SFAS 157 is effective
for financial statements issued for fiscal years beginning after November 15, 2007 and interim periods within
those fiscal years. In February 2008, the FASB issued Staff Position 157-2, “Effective Date of FASB Statement
No. 157” (“FSP 157-2”) which delays the effective date of SFAS 157 for nonfinancial assets and nonfinancial
liabilities, except for items that are recognized or disclosed at fair value in the financial statements on a recurring
basis. The adoption of SFAS 157 for financial assets and financial liabilities did not have an impact on the
Condensed Consolidated Financial Statements. The full adoption of SFAS 157 in 2009 for nonfinancial assets
and nonfinancial liabilities is also not expected to have a significant impact on the Company’s financial position,
results of operations or cash flows.

2. COSTS AND ESTIMATED EARNINGS IN EXCESS OF BILLINGS ON UNCOMPLETED

CONTRACTS AND BILLINGS IN EXCESS OF COSTS AND ESTIMATED EARNINGS:

The sum of costs and estimated earnings in excess of billings on uncompleted contracts represents revenue
earned under the percentage of completion method but not billable based on the terms of the contracts. These
amounts are billed based on the terms of the contracts, which include achievement of milestones, partial
shipments or completion of the contracts. Billings in excess of costs and estimated earnings represents amounts
billed based on the terms of the contracts in advance of costs incurred and revenue earned.

Costs incurred on uncompleted contracts . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Estimated earnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 322,216
86,575

$ 259,075
74,994

Less billings to date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

408,791
(310,577)

334,069
(215,525)

$ 98,214

$ 118,544

December 31,

2008

2007

(in thousands)

F-12

These amounts were reflected in the balance sheet as follows:

Costs and estimated earnings in excess of billings on uncompleted

contracts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$106,234

$121,058

Billings in excess of costs and estimated earnings on uncompleted

contracts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(8,020)

(2,514)

December 31,

2008

2007

(in thousands)

3.

INVENTORIES:

$ 98,214

$118,544

December 31,

2008

2007

(in thousands)

Finished goods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Raw materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$33,271
51,667
2,410

$27,243
33,249
2,313

$87,348

$62,805

4. ASSETS HELD FOR SALE:

On May 31, 2006, the Company completed the sale of its manufacturing facility in Riverside, California. A

gain of $7.7 million was recorded during the year ended December 31, 2006.

5.

PROPERTY AND EQUIPMENT:

Land and improvements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Buildings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment under capital leases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Construction in progress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Less accumulated depreciation and amortization . . . . . . . . . . . . . . . . . . . . . . .

December 31,

2008

2007

(in thousands)

$ 18,824
34,605
170,382
5,447
12,555

$ 16,551
33,717
158,853
5,447
11,274

241,813
(47,778)

225,842
(45,865)

Property and equipment, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$194,035

$179,977

Depreciation expense was $5.0 million, $5.1 million, and $3.8 million for the years ended December 31,
2008, 2007, and 2006, respectively. Accumulated amortization associated with property and equipment under
capital leases was $280,000 and $127,000 at December 31, 2008 and 2007, respectively.

6. LINE OF CREDIT AGREEMENT:

At December 31, 2008, the Company had a $150.0 million line of credit agreement, under which $82.1
million was outstanding, bearing interest at a weighted average rate of 3.55%. At December 31, 2008, the
Company had additional net borrowing capacity under the line of credit of $55.7 million. The line of credit

F-13

expires on May 31, 2012, and bears interest at rates related to LIBOR plus 1.25% to 2.25%, or the lending
institution’s prime rate, plus 0.00% to 0.75%. The line of credit agreement contains the following covenants;
minimum consolidated fixed charge coverage ratio, maximum consolidated senior leverage ratio, maximum
consolidated total leverage ratio, minimum consolidated tangible net worth, and a minimum asset coverage ratio.
At December 31, 2008, the Company was in compliance with all covenants specified in the line of credit
agreement.

7. LONG-TERM DEBT:

Series A Term Note, maturing on February 25, 2014, due in annual payments of

$2.1 million that began February 25, 2008, plus interest at 8.75% paid
quarterly, on February 25, May 25, August 25, and November 25,
collateralized by accounts receivable, inventory and certain equipment
Series B Term Notes, maturing on June 21, 2014, due in annual payments of

. . . . .

$1.5 million that began June 21, 2008, plus interest at 8.47% paid quarterly,
on March 21, June 21, September 21 and December 21, collateralized by
accounts receivable, inventory and certain equipment . . . . . . . . . . . . . . . . . . .
Series C Term Notes, maturing on October 26, 2014, due in annual payments of

$1.4 million that began October 26, 2008, plus interest at 7.36% paid
quarterly, on January 26, April 26, July 26 and October 26, collateralized by
accounts receivable, inventory and certain equipment . . . . . . . . . . . . . . . . . . .
Series D Term Notes, maturing on January 24, 2015, due in annual payments of
$643 that begin January 24, 2009, plus interest at 7.32% paid quarterly, on
January 24, April 24, July 24 and October 24, collateralized by accounts
receivable, inventory and certain equipment

. . . . . . . . . . . . . . . . . . . . . . . . . .

December 31,

2008

2007

(in thousands)

$12,857

$15,000

9,000

10,500

8,572

10,000

4,500

4,500

Total long-term debt

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$34,929

$40,000

Amounts are displayed on the consolidated balance sheet as follows:

Current portion of long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long-term debt, less current portion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 5,714
29,215

$ 5,071
34,929

$34,929

$40,000

The Company is required to maintain certain financial ratios under its long-term debt agreements, including
the following covenants; maximum consolidated total debt to consolidated EBITDA, minimum consolidated
tangible net worth, maximum consolidated senior debt to consolidated EBITDA, minimum consolidated fixed
charge coverage, and a minimum asset coverage ratio. At December 31, 2008, the Company was in compliance
with all covenants specified in its long-term debt agreements.

Future principal payments of long-term debt are as follows (in thousands):

2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thereafter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 5,714
5,714
5,714
5,714
5,714
6,359

$34,929

F-14

Interest expense was $6.4 million, net of amounts capitalized of $395,000 in 2008; $6.8 million, net of

amounts capitalized of $279,000 in 2007; and $6.7 million, net of amounts capitalized of $568,000 in 2006.

8. LEASES:

Capital Leases

The Company leases certain equipment used in the manufacturing process. The future minimum principal

payments under these capital leases are as follows (in thousands):

2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thereafter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total minimum lease payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Less—Amount representing interest

Present value of minimum lease payments with average interest rates of 5.58% . . .
Current portion of capital lease obligation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$1,028
1,028
605
605
605
742

4,613
620

3,993
829

Capital lease obligation, less current portion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$3,164

Operating Leases

The Company has entered into various equipment leases with terms of ten years or less. Total rental expense
for 2008, 2007, and 2006 was $3.1 million, $3.2 million, and $11.0 million, respectively. Future minimum
payments as of December 31, 2008 for operating leases with initial or remaining terms in excess of one year are
(in thousands):

2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thereafter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$1,558
1,086
1,042
954
896
2,971

$8,507

Certain of the Company’s operating lease agreements include renewals and/or purchase options set to expire

at various dates.

9. DERIVATIVE INSTRUMENTS AND FOREIGN CURRENCY TRANSACTIONS:

At December 31, 2008, the Company held five foreign currency forward contracts with a notional value of
CAD$20.8 million that have varying maturities of between 1 and 9 months. The Company revalued the Canadian
foreign currency forward contracts to fair market value at December 31, 2008. By design, these forward contracts
are not designated as hedges as defined by SFAS 133; therefore, unrealized gains of $5.2 million on these
contracts are recorded in net income. Also recorded in net income are foreign currency transaction losses of
$4.4 million resulting from the revaluation of our Canadian sales contracts.

F-15

10. FAIR VALUE MEASUREMENT:

Effective January 1, 2008, the Company adopted SFAS 157, as described in Note 1. SFAS 157 establishes a
fair value hierarchy which prioritizes the inputs to valuation techniques used to measure fair value into three
broad levels. These levels are: Level 1 (inputs are quoted prices in active markets for identical assets or
liabilities); Level 2 (inputs are other than quoted prices that are observable, either directly or indirectly through
corroboration with observable market data); and Level 3 (inputs are unobservable, with little or no market data
that exists).

The following table summarizes information regarding the Company’s financial assets and financial

liabilities that are measured at fair value as of December 31, 2008 (in thousands):

Description

Balance
December 31,
2008

Level 1

Level 2

Level 3

Derivatives . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$1,415

$—

$1,415

$—

The Company uses derivatives to offset the risk associated with the effects of certain foreign currency
exposures. These contracts are not for trading or for speculative purposes. Fair value measurements for the
Company’s derivatives are classified under Level 2 because such measurements are based on third-party
valuation models.

11. RETIREMENT PLANS:

The Company has a defined contribution retirement plan that covers substantially all of its employees and
provides for Company matches of up to 50% of the first 6% of employee contributions to the plan, subject to
certain limitations. The defined contribution retirement plan offers fifteen investment options.

The Company has a non-qualified retirement savings plan that covers the officers and selected highly
compensated employees. The non-qualified plan generally matches up to 50% of the first $10,000 of employee
contributions to the plan, subject to certain limitations. It also provides a Company funded component for the
officers with a retirement target fund. The retirement target fund amount is an actuarially estimated amount
necessary to provide 35% of final base pay after a 35-year career with the Company or 1% of final base pay per
year of service. The actual benefit, however, assumes an investment growth at 8% per year. Should the
investment growth be greater than 8%, the benefit will be more, but if it is less than 8%, the amount will be less
and the Company does not make up any deficiency.

The Company also has two noncontributory defined benefit plans. Both plans are frozen, and participants
are fully vested in their accrued benefits as of the date each plan was frozen. No additional participants can be
added to the plans and no additional service can be earned by participants subsequent to date the plans were
frozen. The funding policy for each noncontributory defined benefit plan is based on current plan costs plus
amortization of the unfunded plan liability. All current employees covered by these plans are now covered by the
defined contribution retirement plan. As of December 31, 2008 the Company had recorded, in accordance with
the actuarial valuation, an accrued pension liability of $1.8 million and an unrecognized actuarial loss, net of tax
of $2.9 million in accumulated other comprehensive income. As of December 31, 2007, the Company had
recorded a prepaid benefit cost of $511,000, and an unrecognized actuarial loss, net of tax of $1.5 million in
accumulated other comprehensive income. Additionally, as of December 31, 2008 and 2007, the accumulated
benefit obligation was $5.3 million and $4.6 million, respectively, and the fair value of plan assets was $3.6
million and $5.1 million, respectively.

Total expense for all retirement plans in 2008, 2007 and 2006 was $1.3 million, $1.0 million and $1.2

million, respectively.

F-16

12. SHARE-BASED COMPENSATION PLANS:

The Company has one active stock incentive plan for employees and directors, the 2007 Stock Incentive
Plan, which provides for awards of stock options to purchase shares of common stock, stock appreciation rights,
restricted and unrestricted shares of common stock, restricted stock units and performance awards. In addition,
the Company has two inactive stock option plans; the 1995 Stock Options Plan for Nonemployee Directors and
the Amended 1995 Stock Incentive Plan, under which previously granted options remain outstanding. The plans
provide that options become exercisable according to vesting schedules, which range from immediate for
nonemployee directors to ratably over a 60-month period for all other options. Options terminate 10 years from
the date of grant. The plans also provide for other equity instruments, such as restricted stock units and
performance awards, which grant the right to receive a specified number of shares over a specified period of
time, which is generally three annual installments; vesting of the performance awards is also dependent on the
Company’s achievement of certain performance-based tests.

The following summarizes share-based compensation expense recorded:

Cost of sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selling, general and administrative expenses . . . . . . . . . . . . . . . . . . . . . . . .

Year ended
December 31,

2008

2007

$

(in thousands)
$—
297

80
945

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$1,025

$297

As of December 31, 2008, unrecognized compensation expense related to the unvested portion of the
Company’s restricted stock units and performance awards was $2.6 million, which is expected to be recognized
over a weighted average period of 1.7 years.

There were 852,435 shares of common stock reserved for issuance under the Company’s stock compensation
plans at December 31, 2008, against which 262,471 options and 85,633 restricted stock units and performance
awards have been granted and remain outstanding. There were 1,004,295 and 582,702 shares of common stock
reserved for issuance under the Company’s stock compensation plans at December 31, 2007 and 2006, respectively.

Stock Options Awards

A summary of status of the Company’s stock options as of December 31, 2008 and changes during the three

years then ended is presented below:

Balance, January 1, 2006 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options exercised or exchanged . . . . . . . . . . . . . . . . . . . . . .

Balance, December 31, 2006 . . . . . . . . . . . . . . . . . . . . . . . .
Options granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options exercised or exchanged . . . . . . . . . . . . . . . . . . . . . .
Options canceled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Balance, December 31, 2007 . . . . . . . . . . . . . . . . . . . . . . . .
Options exercised or exchanged . . . . . . . . . . . . . . . . . . . . . .

Options

711,336
6,000
(143,634)

573,702
15,000
(178,392)
(15)

410,295
(147,824)

Balance, December 31, 2008 . . . . . . . . . . . . . . . . . . . . . . . .

262,471

Weighted
Average
Exercise
Price

Weighted
Average
Remaining
Contractual Life

Aggregate
Intrinsic
Value

(In thousands)

16.06
28.31
17.98

15.71
34.77
16.28
17.90

16.16
17.93

15.17

Exercisable, December 31, 2008 . . . . . . . . . . . . . . . . . . . . . .

262,471

15.17

2.17

$7,203

F-17

The total intrinsic value, defined as the difference between the current market value and the grant price, of
options exercised during the years ended December 31, 2008, 2007 and 2006 was $3.5 million, $3.4 million and
$2.1 million, respectively.

The following table summarizes information about stock options outstanding at December 31, 2008:

Options Outstanding

Options Exercisable

Range of
Exercise Prices
Per Share

$10.31 - $13.56
$13.57 - $14.00
$14.01 - $14.75
$14.76 - $34.77

Number
of
Options

83,081
85,127
49,342
44,921

262,471

Weighted
Average
Remaining
Contractual
Life (years)

1.66
2.51
0.15
4.68

2.17

Weighted
Average
Exercise
Price Per
Share

$13.21
14.00
14.75
21.45

$15.17

Number
of
Options

83,081
85,127
49,342
44,921

262,471

Weighted
Average
Exercise
Price Per
Share

$13.21
14.00
14.75
21.45

$15.17

The following are the options exercisable at

the corresponding weighted average exercise price at

December 31, 2008, 2007, and 2006, respectively: 262,471 at $15.17, 410,295 at $16.16, and 569,725 at $15.70.

There were no options granted during 2008. The weighted average grant date fair value of options granted
during 2007 and 2006 was $17.40 and $12.88, respectively. The fair value of options granted in 2007 and 2006 is
estimated as of the date of grant using the Black-Scholes option-pricing model with the assumptions noted in the
following table. The risk-free interest rate is based on the U.S. Treasury yield curve corresponding to the
expected life of the option in effect at the time of the grant. The expected life is based on the historical exercise
pattern of similar groups of employees. Expected volatility is based on the historical volatility of the Company’s
stock.

Risk-free interest rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expected dividend yield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expected volatility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expected lives (years) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Year Ended December 31,

2007

2006

4.87%
0%
42.62%
6.41

5.02%
0%
42.29%
5.28

F-18

Restricted Stock Units and Performance Awards

A summary of status of the Company’s restricted stock units and performance awards as of December 31,

2008 and changes during the two years then ended is presented below:

Number of
Restricted Stock Units

Weighted Average Grant
Date Fair Value

Unvested restricted stock units and performance

awards at December 31, 2006 . . . . . . . . . . . . . . . . . .

Restricted stock units and performance awards

granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Restricted stock units and performance awards

vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unvested restricted stock units and performance

awards at December 31, 2007 . . . . . . . . . . . . . . . . . .

Restricted stock units and performance awards

—

3,000

—

3,000

granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

85,633

Restricted stock units and performance awards

cancelled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(3,000)

Restricted stock units and performance awards

vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

—

Unvested restricted stock units and performance

awards at December 31, 2008 . . . . . . . . . . . . . . . . . .

85,633

—

38.45

—

38.45

53.14

38.45

—

53.14

Restricted stock units and performance awards are measured at the fair market value on the date of grant.

Stock Awards

For the year ended December 31, 2008, 1,036 stock awards were granted to non-employee directors, which
vested immediately upon issuance. The Company recorded compensation expense based on the fair market value
of the awards on the grant date of $47.73.

13. SHAREHOLDER RIGHTS PLAN:

In June 1999, the Board of Directors adopted a Shareholder Rights Plan (the “Plan”) designed to ensure fair
and equal treatment for all shareholders in the event of a proposed acquisition of the Company by enhancing the
ability of the Board of Directors to negotiate more effectively with a prospective acquirer, and reserved 150,000
shares of Series A Junior Participating Preferred Stock (“Preferred Stock”) for purposes of the Plan. In
connection with the adoption of the Plan, the Board of Directors declared a dividend distribution of one preferred
stock purchase right (a “Right”) per share of common stock, payable to shareholders of record on July 9, 2000.
Each right represents the right to purchase one one-hundredth of a share of Preferred Stock at a price of $83.00,
subject to adjustment. The Rights will be exercisable only if a person or group acquires, or commences a tender
offer to acquire, 15% or more of the Company’s outstanding shares of common stock. Subject to the terms of the
Plan and upon the occurrence of certain events, each Right would entitle the holder to purchase common stock of
the Company, or of an acquiring company in certain circumstances, having a market value equal to two times the
exercise price of the Right. The Company may redeem the Rights at a price of $0.01 per Right under certain
circumstances.

14. COMMITMENTS AND CONTINGENCIES:

Litigation

On December 1, 2000, a section of the lower Willamette River known as the Portland Harbor was included
on the National Priorities List (“NPL”) at the request of the U.S. Environmental Protection Agency (“EPA”).
While the Company’s Portland, Oregon manufacturing facility does not border the Willamette River, an outfall

F-19

liability under

from the facility’s storm water system drains into a neighboring property’s privately owned slip. The Company
and 68 other parties were notified by EPA and the Oregon Department of Environmental Quality (“ODEQ”) of
potential
the Comprehensive Environmental Response, Compensation and Liability Act
(“CERCLA”). As of the end of 2008 more than 200 potentially responsible parties (PRPs) on and nearby the
river have been asked to file information disclosure reports with EPA. By agreement with EPA, ODEQ is
charged with ensuring that all upland sites have “source control” to prevent future contamination to the river. A
remedial investigation and feasibility study (“RI/FS”) of the Portland Harbor is currently being directed by a
group of PRPs known as the Lower Willamette Group (“LWG”). The Company made a payment of $175,000 to
the LWG in June 2007 as part of an interim settlement, and is under no obligation to any make further payment.
The RI/FS is expected to be completed by the LWG in 2009.

In 2001, groundwater containing elevated volatile organic compounds (VOCs) was identified in one
localized area of the Company’s property furthest from the river. Assessment work in 2002 and 2003 to further
characterize the groundwater is consistent with the initial conclusion that the source of the VOCs is located off of
Company-owned property. On January 25, 2005 the Company entered into a Voluntary Agreement for Remedial
Investigation and Source Control Measures (“Agreement”) with ODEQ related to the 2001 discovery. The
Company performed Remedial Investigation (“RI”) work required under the Agreement and submitted a
Remedial Investigation/Source Control Evaluation Report to ODEQ on December 30, 2005. The conclusions of
the report indicate that VOCs in groundwater do not present an unacceptable risk to human or ecological
receptors in the Willamette River. The report also indicates there is no evidence at this time showing a
connection between detected VOCs in groundwater and Willamette River sediments. ODEQ has recommended
further RI work on groundwater, soil and storm water at the site. That work is ongoing.

Based on the RI and reporting required under the Portland, Oregon manufacturing facility’s National
Pollutant Discharge Elimination System permit for storm water, the Company and ODEQ have identified a
possible source of small amounts of polynuclear aromatic compounds (“PAHs”) and polychlorinated biphenyls
(“PCBs”) and have periodically identified trace amounts of zinc in storm water. Storm water from the Portland,
Oregon manufacturing facility site is discharged to a neighboring property’s privately owned slip, as is storm
water from surrounding industrial properties. The slip was historically used for shipbuilding and subsequently for
ship breaking and metal recycling. Studies of the river sediments in the slip have revealed concentration of
PAHs, PCBs and zinc which are common constituents in urban storm water discharges. To minimize the zinc
traces in the storm water, the Company has undertaken a program to coat the roofs of a substantial part of the
facility.

Concurrent with the activities of EPA and ODEQ, the Portland Harbor Natural Resources Trustee Council
(“Trustees”) sent some or all of the same parties, including the Company, a notice of intent to perform an Injury
Assessment for the Portland Harbor Site to determine the nature and extent of natural resource damages under
CERCLA section 107. Natural resource damages focus on site restoration as opposed to actions to remove or
remediate hazardous substances. The Trustees for the Portland Harbor Site consist of representatives from six
Northwest Indian Tribes and three federal agencies. The Trustees act independently of EPA and ODEQ but the
Company expects their assessment will be coordinated with the RI/FS work underway at the Portland Harbor
Site. The Trustees have encouraged potentially responsible parties to voluntarily participate in the funding of
their injury assessment. The Company has not assumed any payment obligation or liability related to the
Trustee’s assessment.

The extent of the Company’s participation in these matters is not known, and no further adjustment to the

consolidated financial statements has been recorded as of December 31, 2008.

The Company operates its facilities under numerous governmental permits and licenses relating to air
emissions, storm water run-off, and other matters. The Company’s operations are also governed by many other
including those relating to workplace safety and worker health, principally the
laws and regulations,
Occupational Safety and Health Act and regulations there under which, among other requirements, establish

F-20

noise and dust standards. The Company believes it is in material compliance with its permits and licenses and
these laws and regulations, and does not believe that future compliance with such laws and regulations will have
a material adverse effect on its financial position, results of operations or cash flows.

From time to time, the Company is involved in litigation relating to claims arising out of its operations in
the normal course of its business. The Company maintains insurance coverage against potential claims in
amounts that are believed to be adequate. The Company believes that it is not presently a party to any other
litigation, the outcome of which would have a material adverse effect on its business, financial condition, results
of operations or cash flows.

Guarantees

The Company has entered into certain stand-by letters of credit that total $12.3 million. The stand-by letters

of credit relate to customer owned raw materials and workers’ compensation insurance.

15. INCOME TAXES:

The components of the provision for income taxes are as follows:

Year Ended December 31,

2008

2007

2006

(in thousands)

Current:

Federal
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$13,510
1,905

$ 7,658
1,238

$ 4,163
370

Deferred:

Federal
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3,773
594

2,586
406

4,991
759

$19,782

$11,888

$10,283

The difference between the effective income tax rate and the statutory U.S. federal income tax rate is

explained as follows:

Provision at statutory rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
State provision, net of federal benefit
Research and development credits . . . . . . . . . . . . . . . . . . . . . . . . . . .
Domestic manufacturing deduction . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Year Ended December 31,

2008

2007

2006

$18,229
1,631
(100)
(735)
757

(in thousands)
$11,452
1,069
(170)
(455)
(8)

$10,606
713
(1,313)
(167)
444

$19,782

$11,888

$10,283

F-21

The tax effect of temporary differences that give rise to significant portions of deferred tax assets and

liabilities is presented below:

December 31,

2008

2007

(in thousands)

Current deferred tax assets:

Inventories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued employee benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trade receivables, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net operating loss carryforwards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 2,208
2,137
466
122
166

$ 1,848
2,021
442
150
91

Current deferred tax liabilities:

Prepaid expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(539)
(24)

(491)
—

Current deferred tax assets, net

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 4,536

$ 4,061

5,099

4,552

Noncurrent deferred tax assets:

Net operating loss carryforwards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued employee benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

Valuation allowance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

618
1,548
618

2,784
(446)

2,338

642
258
—

900
(520)

380

Noncurrent deferred tax liabilities:
Property and equipment
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(40,115)
—

(33,906)
(247)

Noncurrent deferred tax liabilities, net . . . . . . . . . . . . . . . . . . . . . . . .

$(37,777)

$(33,773)

Net deferred tax liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$(33,241)

$(29,712)

As of December 31, 2008, the Company had approximately $696,000 of federal net operating loss
carryforwards and $6.3 million of state net operating loss carryforwards as a result of the acquisition of
Thompson Pipe and Steel, which are limited in their use to approximately $348,000 per year during the 15 year
carryforward period which expires in 2010. During the year ended December 31, 2008, the Company recorded a
decrease in the valuation allowance of $74,000 related to the state net operating loss carryforwards. As it was
considered more likely than not the additional benefits would be realized, the valuation allowance was adjusted
based upon current and anticipated future taxable income, state tax rates, and state apportionment.

A summary of the changes in the unrecognized tax benefits during the year ended December 31, 2008 is

presented below (in thousands):

Unrecognized tax benefits at December 31, 2007 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Decreases for positions taken in the current year . . . . . . . . . . . . . . . . . . . . . . . .
Increases for positions taken in prior years . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Increases for positions expected to be taken in future years . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Increases for interest

$ 956
(45)
426
30
50

Unrecognized tax benefits at December 31, 2008 . . . . . . . . . . . . . . . . . . . . . . .

$1,417

All of the balance of unrecognized tax benefits at December 31, 2007 and 2008 would affect the Company’s

effective tax rate if recognized.

F-22

The Company files income tax returns in the United States Federal jurisdiction, in one foreign jurisdiction,
and in many state jurisdictions. With few exceptions, the Company is no longer subject to US Federal or state
income tax examinations for years before 2003. The Company is currently attempting to resolve income tax
audits relating to the 2005 tax filings in various jurisdictions, and certain amendments filed. The Company does
not believe it is reasonably possible the total amounts of unrecognized tax benefits will change significantly prior
to December 31, 2009; however, actual results could differ from those currently expected.

The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. As
of December 31, 2008, the Company has approximately $145,000 of accrued interest related to uncertain tax
positions.

16. SEGMENT INFORMATION:

The Company has adopted SFAS 131, “Disclosures about Segments of an Enterprise and Related
Information” which requires disclosure of financial and descriptive information about the Company’s reportable
operating segments. The operating segments reported below are based on the nature of the products sold by the
Company and are the segments of the Company for which separate financial information is available and for
which operating results are regularly evaluated by executive management to make decisions about resources to
be allocated to the segment and assess its performance. Management evaluates segment performance based on
segment gross profit. There were no material transfers between segments in the periods presented.

Historically, the Company disclosed three segments, but based on changes in organizational structure and
strategic direction in 2008, the resulting reporting of segments changed. The Company has conformed 2007 and
2006 segment information to be consistent with the current reporting and operating structure in place.

The Company’s water transmission segment manufactures and markets large diameter, high-pressure steel
pipe used primarily for water transmission. Water Transmission products are custom manufactured in accordance
with project specifications and are used primarily for high-pressure water transmission pipelines in the United
States, Canada, and Mexico. Water Transmission manufacturing facilities are located in Portland, Oregon;
Denver, Colorado; Adelanto, California; Parkersburg, West Virginia; Saginaw, Texas; Pleasant Grove, Utah; and
Monterrey, Mexico and products are sold primarily to public water agencies either directly or through an
installation contractor.

The Company’s tubular products segment manufactures and markets smaller diameter, electric resistance
welded steel pipe for use in a wide range of applications, including construction, agricultural, industrial, energy
and traffic signpost systems. Tubular Products manufacturing facilities are located in Atchison, Kansas; Houston,
Texas; and Bossier City, Louisiana. Tubular Products are marketed through a network of direct sales force
personnel and independent distributors throughout the United States, Canada and Mexico.

F-23

Based on the location of the customer, the Company sold principally all products in the United States,

Canada and Mexico. As of December 31, 2008, all material long-lived assets are located in the United States.

Year Ended December 31,

2008

2007

2006

(in thousands)

Net sales:

Water transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tubular products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$271,930
167,805

$287,805
95,019

$261,835
84,756

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$439,735

$382,824

$346,591

Gross profit:

Water transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tubular products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 54,473
39,185

$ 60,207
10,008

$ 47,781
8,932

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 93,658

$ 70,215

$ 56,713

Depreciation and amortization of property and equipment:

Water transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tubular products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Corporate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2,681
1,182

3,863
1,103

$

3,036
940

3,976
1,157

$

2,133
515

2,648
1,134

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

4,966

$

5,133

$

3,782

Capital expenditures:

Water transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tubular products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 14,668
6,066

$ 19,084
3,381

$ 25,871
31,955

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Corporate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20,734
878

22,465
867

57,826
602

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 21,612

$ 23,332

$ 58,428

Net sales by geographic area:

United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$386,422
53,313

$351,237
31,587

$329,180
17,411

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$439,735

$382,824

$346,591

Year Ended December 31,

2008

2007

(in thousands)

Goodwill:

Water transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tubular products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ — $ —
21,451

21,451

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 21,451

$ 21,451

Total Assets:

Water transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tubular products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$317,584
162,456

$306,231
126,737

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Corporate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

480,040
29,394

432,968
20,595

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$509,434

$453,563

No one customer represented more than 10% of total sales in 2008, 2007 or 2006.

F-24

17. QUARTERLY DATA (UNAUDITED):

As discussed in Note 16, the Company has conformed 2007 segment information to be consistent with the
current reporting and operating structure in place. Summarized quarterly financial data for 2008 and 2007 is as
follows (dollars in thousands):

First
Quarter

Second
Quarter

Third
Quarter

Fourth
Quarter

2008

Net sales:

Water transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tubular products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$63,869
30,134

$ 74,861
37,245

$ 77,512
45,913

$ 55,688
54,513

Total net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$94,003

$112,106

$123,425

$110,201

Gross profit:

Water transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tubular products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Earnings per share:

$14,453
3,332

$17,785
$ 5,047

$ 14,778
9,840

$ 14,261
12,550

$ 10,981
13,463

$ 24,618
8,399
$

$ 26,811
$ 10,227

$ 24,444
8,628
$

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$
$

0.56
0.54

$
$

0.92
0.90

$
$

1.12
1.09

$
$

0.94
0.92

2007
Net sales:

Water transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tubular products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$67,754
22,982

$ 72,979
28,918

$ 66,773
25,209

$ 80,299
17,910

Total net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$90,736

$101,897

$ 91,982

$ 98,209

Gross profit:

Water transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tubular products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$13,794
2,310

$16,104
$ 4,534

$ 15,164
3,628

$ 14,215
3,082

$ 17,034
989

$ 18,792
5,662
$

$ 17,297
5,069
$

$ 18,023
5,568
$

Earnings per share:

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$
$

0.51
0.49

$
$

0.63
0.61

$
$

0.57
0.55

$
$

0.62
0.60

F-25

NORTHWEST PIPE COMPANY
VALUATION AND QUALIFYING ACCOUNTS
(Dollars in thousands)

Schedule II

Balance at
Beginning of
Period

Charged to
Profit and
Loss

Deduction
from Reserves

Balance at
Close of
Period

Year ended December 31, 2008:

Allowance for doubtful accounts . . . . . . . . . . . . . . . . . . .
Valuation allowance for deferred tax assets . . . . . . . . . . .

$1,129
520

Year ended December 31, 2007:

Allowance for doubtful accounts . . . . . . . . . . . . . . . . . . .
Valuation allowance for deferred tax assets . . . . . . . . . . .

$ 823
520

Year ended December 31, 2006:

Allowance for doubtful accounts . . . . . . . . . . . . . . . . . . .
Valuation allowance for deferred tax assets . . . . . . . . . . .

$ 500
520

$1,818
—

$2,633
—

$2,194
—

$(1,733)
(74)

$1,214
446

$(2,327)
—

$1,129
520

$(1,871)
—

$ 823
520

S-1

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant
has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, on the 12th
day of March 2009.

NORTHWEST PIPE COMPANY

By

/s/ BRIAN W. DUNHAM

Brian W. Dunham
Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by

the following persons on behalf of the Registrant in the capacities indicated, on the 12th day of March 2009.

Signature

Title

/s/ WILLIAM R. TAGMYER

Director and Chairman of the Board

William R. Tagmyer

/s/ BRIAN W. DUNHAM

Director, President and Chief Executive Officer

Brian W. Dunham

/s/ STEPHANIE J. WELTY

Stephanie J. Welty

Senior Vice President and Chief Financial Officer
(Principal Financial Officer)

/s/ MICHAEL C. FRANSON

Director

Michael C. Franson

/s/ WAYNE B. KINGSLEY

Director

Wayne B. Kingsley

/s/ KEITH R. LARSON
Keith R. Larson

Director

/s/ RICHARD A. ROMAN

Director

Richard A. Roman

AGREEMENT  

Exhibit 10.17 

PARTIES:   Northwest Pipe Company

   5721 Columbia Way
   Suite 200
   Vancouver, WA 98661

   William R. Tagmyer
   1415 Horseshoe Curve
   Lake Oswego, OR 97034

EFFECTIVE DATE: November 14, 2000 (As Amended December 31, 2008)  

Company desires to retain the services of Executive, and Executive desires to continue to provide his services, upon the terms 

and conditions set forth in this Agreement. Therefore, in exchange for the mutual promises set forth below, the parties agree as 
follows:  

ARTICLE 1  
DEFINITIONS  

1.1 “Base Salary” means regular cash compensation paid on a periodic basis exclusive of benefits, bonuses or incentive 

payments.  

1.2 “Board” means the Board of Directors of Company.  

1.3 “Cause” means (a) Executive’s willful participation in any illegal conduct which is materially and demonstrably injurious to 

the Company, or (b) Executive’s breach of the provisions of either Section 5.2 or Section 5.3 of this Agreement. For the purpose of 
this Section 1.3, no act, or failure to act, on Executive’s part shall be considered “willful” unless done, or omitted to be done, in 
knowing bad faith and without reasonable belief that the action or omission was in, or not opposed to, the best interests of the 
Company. Any act, or failure to act, based upon authority given pursuant to a resolution duly adopted by the Board or based upon the 
advice of counsel for the Company shall be conclusively presumed to be done, or omitted to be done, by Executive in good faith and 
in the best interests of the corporation.  

1.4 “Confidential Information” Company has researched, compiled and developed certain proprietary data, including, but not 
limited to customer information, trade secrets, and other information which is not generally disclosed by Company to the public. For 
the purpose of this Agreement, Confidential Information means all proprietary data that has been researched, compiled, developed 
and/or maintained by Company, and which is not generally known within the industry. Confidential Information includes 
information, ideas, knowledge, data, or know-how related to products, processes, software, designs, formulae, tests, research, business 
and/or marketing plans and strategies, costs, profits, pricing, personnel and financial information, capitalization and other corporate 
data and information, and information about or obtained from customers, authors, suppliers, consultants, licenses, or affiliates.  

1 – AGREEMENT 

  
1.5 “Disability” means the inability of Executive to perform his duties under this Agreement, with or without reasonable 

accommodation, because of physical or mental incapacity for a continuous period of 180 days.  

ARTICLE 2  
EMPLOYMENT, DUTIES AND TERM  

2.1 Employment. Company employs Executive, and Executive accepts employment with Company for a period commencing 

on the Effective Date and continuing through December 31, 2010 (the “Employment Period”). For the purpose of this Agreement, the 
phrase “the first three years of the Employment Period” shall include the remainder of the calendar year 2000 and the entire calendar 
years 2001, 2002 and 2003.  

2.2 Duties. During the Employment Period, Executive shall make himself reasonably available to Company from time to time to 

perform such part-time duties as may be assigned to him by Company, provided that such part-time duties are reasonably consistent 
with Executive’s education, experience and background. Further, Executive shall comply at all times with Company’s policies and 
procedures to the extent they are not inconsistent with the provisions of this Agreement.  

2.3 Term. This Agreement shall commence on the Effective Date and shall continue in effect until December 31, 2010, unless 

earlier terminated in accordance with the provisions of Article 6.  

ARTICLE 3  
COMPENSATION AND EXPENSES  

3.1 Base Salary. During the first three years of the Employment Period, Company shall pay Executive an annual Base Salary of 
$350,000. During the next succeeding seven years of the Employment Period, Company shall pay Executive an annual Base Salary of 
$150,000.  

3.2 Bonus. During the first three years of the Employment Period, Executive shall be eligible for an annual bonus in the amount 

determined by the Board in its sole discretion.  

3.3 Fringe Benefits. During the first three years of the Employment Period, Executive shall be entitled to such fringe benefits 

(e.g., automobile or automobile allowance, health insurance, life insurance, club dues, 401K) as are available to him immediately 
before the effective date of this Agreement.  

3.4 Business Expenses. Company shall, in accordance with, and to the extent of, its policies in effect from time to time, bear all 
ordinary and necessary business expenses reasonably incurred by Executive in performing his duties during the Employment Period, 
provided that Executive accounts promptly for such expenses to Company in the manner prescribed from time to time by Company.  

2 – AGREEMENT 

  
During the term of this Agreement, Executive will engage in no activity or employment which may conflict with the interest of 

Company, and he will comply with Company’s policies and guidelines pertaining to business conduct and ethics.  

ARTICLE 4 
CONFLICT OF INTEREST  

ARTICLE 5  
PROPRIETARY RIGHTS  

5.1 Confidential Information. Executive shall not use or disclose Confidential Information, in any form, for any purpose, 
except in the course of Executive’s employment with Company. Executive acknowledges that he will obtain no right, title or interest 
in the Confidential Information, and that the Confidential Information shall remain the sole property of Company. Executive shall 
return all Confidential Information, including all copies in any form, to Company immediately upon termination of this Agreement.  

5.2 Non-solicitation. During the period commencing on the Effective Date of this Agreement and extending until the later of 
(i) the date that is one year after the date of termination of this Agreement, or (ii) the date that is one year after the last payment is 
made to Executive pursuant to this Agreement, Executive shall not directly or indirectly (a) solicit business from any person or entity 
which then is or was a Company customer, client or prospect during the 60 months prior to the date of termination; (b) induce any 
such person or entity to cease or reduce their business relationship with Company; (c) induce any person to leave the employment of 
Company; or (d) hire or use the services of any Company employee without Company’s prior written consent. Executive will not aid 
others in doing anything Executive is prohibited from doing under this Section 5.2, whether as an employee, officer, director, 
shareholder, partner, consultant or otherwise.  

For purposes of this Section 5.2, the term “solicit” includes without limitation (i) responding to requests for proposals and 

invitations for bids, (ii) initiating contacts with customers, clients, or prospects of Company for the purpose of advising them that 
Executive is no longer employed by or consults for Company and is available for work which is competitive with the services offered 
by Company, and (iii) participating in joint ventures or acting as a consultant or subcontractor or employee of others who directly 
solicit business is prohibited by this Agreement. The term “Company employee” includes any then current employee of Company or 
any person who has left the employ of Company within the then previous six months. The terms “Company client” and “Company 
customer” include any parent corporation, subsidiary corporation, affiliate corporation or partner or joint venture of a client or 
customer. “Company prospect” means any person or entity to whom Company has submitted a bid or proposal within the then 
immediately preceding 12 months.  

5.3 Noncompetition. During the period commencing on the Effective Date of this Agreement and extending until the later of 
(i) the date that is one year after the date of termination of this Agreement, or (ii) the date that is one year after the last payment is 
made to Executive pursuant to this Agreement, Executive shall not directly or indirectly Compete with Company anywhere Company 
is doing or planning to do business, nor engage in any other  

3 – AGREEMENT 

  
activity which would conflict with the Company’s business, or interfere with Executive’s obligations to the Company. For the 
purpose of this Section 5.3, “Compete” means directly or indirectly: (i) have any financial interest in, (ii) join, operate, control or 
participate in, or be connected as an officer, employee, Executive, independent contractor, partner, principal or shareholder with 
(except as holder of not more than five percent of the outstanding stock of any class of a corporation, the stock of which is actively 
publicly traded) or (iii) provide services in any capacity to those participating in the ownership, management, operation or control of, 
and/or (iv) act as a consultant or subcontractor to, a Competitive Business. “Competitive Business” means any corporation, 
proprietorship, association or other entity or person engaged in the sale, production and/or development of products or the rendering 
of services of a kind similar to or competitive with that sold, produced, developed or rendered by Company within three years of the 
date Executive’s employment terminates.  

5.4 Consent to Injunction. Executive acknowledges that Company would suffer irreparable harm for which monetary damages 
alone would not adequately compensate Company if Executive breached any of his obligations under this Article V. Executive agrees 
that Company shall be entitled to injunctive relief to enjoin any breach or threatened breach of this Article V, in addition to any other 
available remedies.  

ARTICLE 6  
TERMINATION  

6.1 Termination. This Article sets forth the terms for early termination of this Agreement, and Executive’s exclusive remedies 

for termination.  

6.2 Right to Terminate. The Company or Executive may terminate Executive’s employment with Company at any time, 

subject to Company’s obligations to provide benefits under this Agreement.  

6.3 Notice of Termination. Any purported termination by Company or by Executive other than a termination due to 
Executive’s death shall be communicated to the other party by written Notice of Termination. For purposes of this Agreement, a 
“Notice of Termination” means a notice which indicates the specific termination provision in this Agreement relied upon and setting 
forth in reasonable detail the facts and circumstances claimed to provide a basis for termination of this Agreement.  

6.4 Termination Due to Death. This Agreement shall terminate in the event of Executive’s death. In such event, Company 
shall pay in a single lump sum Executive’s designated beneficiary or his estate, whichever is applicable, fifty percent of the remaining 
payments that would otherwise have been payable to Executive for the term of this Agreement had Executive survived. Such payment 
shall be made within 60 days after the end of the year of Executive’s death.  

6.5 Termination due to Disability. Company may terminate this Agreement due to Disability no less than 30 days after Notice 

of Termination is given, provided that Executive has not returned to the performance of his duties during such 30 day period. In the 
event of termination due to Disability, Company shall continue to pay Executive all of the remaining  

4 – AGREEMENT 

  
payments that otherwise would have been payable to Executive when such payments become due according to the payment schedule 
for salary payments to Executive under this Agreement for the term of this Agreement had he not become disabled; provided, 
however, such payments may be offset by any payments received directly by Executive from any policies of disability income 
insurance maintained by Company for the benefit of Executive.  

6.6 Termination for Cause. Company may terminate this Agreement for Cause upon delivery to Executive of a resolution duly 
adopted by the affirmative vote of not less than two-thirds of the entire membership of the Board at a meeting of the Board called and 
held for the purpose (after reasonable notice to Executive and an opportunity for Executive, together with his counsel, to be heard 
before the Board), finding that in the good faith opinion of the Board Executive was guilty of the conduct set forth Section 1.3 and 
specifying the particulars thereof in detail. In the event of termination for Cause pursuant to this Section 6.6, Company shall pay 
Executive all compensation and expenses to which he is entitled pursuant to the provisions of Article 3 of this Agreement through the 
date of termination not later than 30 days after the date of termination.  

6.7 Termination by Company for Reasons Other than Death, Disability or Cause. Company may terminate this Agreement 

for any reason other than death, Disability, or Cause not less than 90 days after the date on which a Notice of Termination is given, 
unless an earlier date has been agreed to by the party receiving the Notice of Termination either in advance of, or after, receiving such 
Notice of Termination. In the event Company terminates this Agreement for any reason other than death, Disability or Cause, 
Company shall continue to pay Executive all of the remaining payments that would otherwise have been payable to Executive for the 
term of this Agreement when such payments would have become due had this Agreement not been terminated.  

6.8 Termination by Executive. In the event Executive terminates this Agreement, Company shall pay Executive all 
compensation and expenses to which he is entitled pursuant to the provisions of Article 3 of this Agreement through the date of 
termination.  

6.9 No Reduction or Offset. The amount of any payments made to Executive by Company under this Agreement shall not be 
reduced, offset or subject to recovery by Company by reason of any compensation earned by Executive as the result of employment 
by another employer after the date of termination, or otherwise.  

6.10 Fees and Expenses. Company shall pay all professional fees and related expenses incurred by Executive as a result of 

Executive’s attempt to enforce any right or benefit provided by this Agreement.  

ARTICLE 7  
GENERAL PROVISIONS  

7.1 Successors and Assigns. This Agreement shall inure to the benefit of and be enforceable by the parties, and their respective 
personal or legal representatives, executors, administrators, successors, heirs, distributees, devisees, legatees, successors and assigns. 
In that this Agreement is a personal services contract, it shall not be assigned by Executive.  

5 – AGREEMENT 

  
7.2 Survival. The respective rights and obligations of the parties set forth in this Agreement shall survive the termination of this 

Agreement.  

7.3 Notice. For the purpose of this Agreement, notices and all other communications provided for in this Agreement shall be in 

writing and shall be deemed to have been duly given when delivered or mailed by United States registered mail, return receipt 
requested, postage prepaid and addressed to the address of the respective party set forth on the first page of this Agreement, provided 
that all notices to the Company shall be directed to the attention of the President of the Company, with a copy to the Secretary of the 
Company, or to such other address as either party may have furnished to the other in writing in accordance with this Section 7.3, 
except that notice of change of address shall be effective only upon receipt.  

7.4 Miscellaneous. No provision of this Agreement may be modified, waived or discharged unless such modification, waiver or 
discharge is agreed to in a writing signed by Executive and the President of the Company. The failure of either party to demand strict 
performance of any provision of this Agreement shall not constitute a waiver of any provision, term, covenant, or condition of this 
agreement or of the right to demand strict performance in the future. No agreements or representations, oral or otherwise, express or 
implied, with respect to the subject matter hereof have been made by either party which are not expressly set forth in this Agreement. 
The validity, interpretation, construction and performance of this Agreement shall be governed by the laws of the State of Oregon.  

7.5 Severability. The provisions of this Agreement are severable. If any provision of this Agreement or its application is held 

invalid, the invalidity shall not affect other obligations.  

7.6 Arbitration. Any dispute or controversy arising under or in connection with this Agreement shall be settled exclusively by 

arbitration in Portland, Oregon, by a single arbitrator in accordance with the rules of the National Rules for the Resolution of 
Employment Disputes of the American Arbitration Association then in effect. Both parties agree that the procedure outlined in this 
paragraph is the exclusive method of dispute resolution; provided, however, that Company shall be entitled to seek injunctive relief in 
any court of competent jurisdiction to prevent a breach or threatened breach of Article 5, notwithstanding anything in this paragraph 
to the contrary. The Company shall bear all costs and expenses arising in connection with any arbitration under this Section. Except 
as provided in Section 6.9, the prevailing party in any suit, action, arbitration or other proceeding to interpret or enforce this 
Agreement shall be entitled to recover its attorney fees, costs and expenses.  

7.7 Related Agreements. To the extent that any provision of any other agreement between Company and Executive shall limit, 
qualify or be inconsistent with any provision of this Agreement, the provisions of this Agreement shall control the provisions of such 
other agreements shall be deemed to have been superseded and of no further force or effect.  

7.8 Termination of Payments. Notwithstanding any other provision of this Agreement to the contrary, Company shall not be 
required to make any payments to Executive under this Agreement and may terminate any payments being made to Executive under 
this Agreement in the event that Executive breaches the provisions of either Section 5.2 or Section 5.3 of this Agreement.  

6 – AGREEMENT 

  
The parties have signed this Agreement to be effective as of the Effective Date. 

/s/ William R. Tagmyer
WILLIAM R. TAGMYER
“Executive”

  NORTHWEST PIPE COMPANY

/s/ Brian W. Dunham

  By:
  Title:  President
  “Company”

7 – AGREEMENT 

  
  
 
 
 
 
Exhibit 10.18 

To the CEO and President:  

July 28, 1999  
(As Amended December 31, 2008)  

Northwest Pipe Company, an Oregon corporation (the “Company”), considers the establishment and maintenance of a sound 

and vital management to be essential to protecting and enhancing the best interest of the Company and its shareholders. In this 
connection, the Company recognizes that, as is the case with many publicly held corporations, the possibility of a Change in Control 
may exist and that such possibility, and the uncertainty and questions which it may raise among management, may result in the 
departure or distraction of management personnel to the detriment of the Company and its shareholders. Accordingly, the Board of 
Directors of the Company (the “Board”) has determined that appropriate steps should be taken to reinforce and encourage the 
continued attention and dedication of members of the Company’s management to their assigned duties without distraction in 
circumstances arising from the possibility of a Change in Control of the Company.  

In order to induce you to remain in the employ of the Company, this letter agreement, which has been approved by the Board, 

sets forth the severance benefits which the Company agrees will be provided to you in the event your employment with the Company 
is terminated subsequent to a “Change in Control” of the Company under the circumstances described below.  

1. Right to Terminate. The Company or you may terminate your employment at any time, subject to the Company’s obligations 

to provide the benefits hereinafter specified in accordance with the terms hereof.  

2. Term of Agreement. This Agreement shall commence on the date hereof and shall continue in effect until July 19, 2009; 
provided, however, that commencing on July 19, 2009 and each July 19 thereafter, the term of this Agreement shall automatically be 
extended for one additional year unless at least 90 days prior to such July 19 date, the Company or you shall have given notice that 
this Agreement shall not be extended; provided, however, that this Agreement shall continue in effect for a period of twenty-four 
(24) months beyond the term provided herein if a Change in Control, as defined in Section 3 hereto shall have occurred during such 
term. Notwithstanding anything in this Section 2 to the contrary, this Agreement shall terminate if you or the Company terminate your 
employment prior to a Change in Control as defined in Section 3 hereof.  

3. Change in Control; Person.  

3.1 For purposes of this Agreement, a “Change in Control” shall mean the occurrence of any of the following events:  

3.1.1 The approval by the shareholders of the Company of: 

(a) any consolidation, merger or plan of share exchange involving the Company (a “Merger”) in which the 

Company is not the continuing or surviving corporation or pursuant to which shares of Common Stock of the 
Company (“Company Shares”) would be converted into cash, securities or other property, other than a Merger 
involving Company Shares in which the holders of Company Shares immediately prior to the Merger have the same 
proportionate ownership of common stock of the surviving corporation immediately after the Merger,  

(b) any sale, lease, exchange or other transfer (in one transaction or a series of related transactions) of all, or 

substantially all, the assets of the Company; or  

(c) the adoption of any plan or proposal for the liquidation or dissolution of the Company.  

3.1.2 At any time during a period of two consecutive years, individuals who at the beginning of such period 
constituted the Board (“Incumbent Directors”) shall cease for any reason to constitute at least a majority thereof unless 
each new director elected during such two-year period was nominated or elected by two-thirds of the Incumbent Directors 
then in office and voting (with new directors nominated or elected by two-thirds of the Incumbent Directors also being 
deemed to be Incumbent Directors); or  

3.1.3 Any Person (as hereinafter defined) shall, as a result of a tender or exchange offer, open market purchases, or 

privately negotiated purchases from anyone other than the Company, have become the beneficial owner (within the 
meaning of Rule 13d-3 under the Securities Exchange Act of 1934), directly or indirectly, of securities of the Company 
ordinarily having the right to vote for the election of directors (“Voting Securities”) representing thirty percent (30%) or 
more of the combined voting power of the then outstanding Voting Securities.  

Notwithstanding anything in the foregoing to the contrary, unless otherwise determined by the Board, no Change in Control 
shall be deemed to have occurred for purposes of this Agreement if (1) you acquire (other than on the same basis as all other holders 
of the Company Shares) an equity interest in an entity that acquires the Company in a Change in Control otherwise described under 
subparagraph 3.1.1 above, or (2) you are part of a group that constitutes a Person which becomes a beneficial owner of Voting 
Securities in a transaction that otherwise would have resulted in a Change in Control under subparagraph 3.1.3 above.  

3.2 For purposes of this Agreement, the term “Person” shall mean and include any individual, corporation, partnership, 
group, association or other “person,” as such term is used in Section 13(d)(3) or Section 14(d)(2) of the Securities Exchange Act 
of 1934 (the “Exchange Act”), other than the Company or any employee benefit plan(s) sponsored by the Company.  

4. Termination Following Change In Control. If a Change in Control shall have occurred, you shall be entitled to the benefits 

provided in Section 5.3 hereof upon the termination of your employment within twenty-four (24) months after such Change in 
Control unless such termination is (a) because of your death, (b) by the Company for Cause or Disability or (c) by you other than for 
Good Reason (as all such capitalized terms are hereinafter defined).  

Page 2 

  
4.1 Disability. Termination by the Company of your employment based on “Disability” shall mean termination because of 
your absence from your duties with the Company on a full-time basis for one hundred eighty (180) consecutive days as a result 
of your incapacity due to physical or mental illness, unless within thirty (30) days after Notice of Termination (as hereinafter 
defined) is given to you following such absence you shall have returned to the full-time performance of your duties.  

4.2 Cause. Termination by the Company of your employment for “Cause” shall mean termination upon (a) the willful and 

continued failure by you to substantially perform your reasonably assigned duties with the Company consistent with those duties 
assigned to you prior to the Change in Control (other than any such failure resulting from your incapacity due to physical or 
mental illness) which failure shall not have been corrected within thirty (30) days after a demand for substantial performance is 
delivered to you by the Chairman of the Board or President of the Company which specifically identifies the manner in which 
such executive believes that you have not substantially performed your duties, or (b) the willful engaging by you in illegal 
conduct which is materially and demonstrably injurious to the Company. For purposes of this paragraph 4.2, no act, or failure to 
act, on your part shall be considered “willful” unless done, or omitted to be done, by you in knowing bad faith and without 
reasonable belief that your action or omission was in, or not opposed to, the best interests of the Company. Any act, or failure to 
act, based upon authority given pursuant to a resolution duly adopted by the Board or based upon the advice of counsel for the 
Company shall be conclusively presumed to be done, or omitted to be done, by you in good faith and in the best interests of the 
corporation. Notwithstanding the foregoing, you shall not be deemed to have been terminated for Cause unless and until there 
shall have been delivered to you a copy of a resolution duly adopted by the affirmative vote of not less than two-thirds of the 
entire membership of the Board at a meeting of the Board called and held for the purpose (after reasonable notice to you and an 
opportunity for you, together with your counsel, to be heard before the Board), finding that in the good faith opinion of the 
Board you were guilty of the conduct set forth above in (a) or (b) of this paragraph 4.2 and specifying the particulars thereof in 
detail.  

4.3 Good Reason. Termination by you of your employment for “Good Reason” shall mean termination based on:  
4.3.1 a change in your status, title, position(s) or responsibilities as an officer of the Company which, in your 
judgment (which shall be exercised in good faith), constitutes an adverse change from your status, title, position(s) and 
responsibilities as in effect immediately prior to the Change in Control, or the assignment to you of any duties or 
responsibilities which, in your judgment (which shall be exercised in good faith), are inconsistent with such status, title or 
position(s), or any removal of you from or any failure to reappoint or reelect you to such position(s), except in connection 
with the termination of your employment for Cause, Disability or as a result of your death or by you other than for Good 
Reason;  

4.3.2 a reduction by the Company in your base salary as in effect immediately prior to the Change in Control;  

Page 3 

  
4.3.3 the failure by the Company to continue in effect any Plan (as hereinafter defined) in which you are participating 

at the time of the Change in Control (or Plans providing you with at least substantially similar benefits) other than as a 
result of the normal expiration of any such Plan in accordance with its terms as in effect at the time of the Change in 
Control, or the taking of any action, or the failure to act, by the Company which would adversely affect your continued 
participation in any of such Plans on at least as favorable a basis to you as is the case on the date of the Change in Control 
or which would materially reduce your benefits in the future under any of such Plans or deprive you of any material benefit 
enjoyed by you at the time of the Change in Control;  

4.3.4 the failure by the Company to provide and credit you with the number of paid vacation days to which you are 

then entitled in accordance with the Company’s normal vacation policy as in effect immediately prior to the Change in 
Control;  

4.3.5 the Company’s requiring you to be based anywhere other than within ten (10) miles of where your office is 
located immediately prior to the Change in Control except for required travel on the Company’s business to an extent 
substantially consistent with the business travel obligations which you undertook on behalf of the Company prior to the 
Change in Control;  

4.3.6 the failure by the Company to obtain from any Successor (as hereinafter defined) the assumption or assent to 

this Agreement contemplated by Section 6 hereof within thirty (30) days after a Change in Control; or  

4.3.7 any purported termination by the Company of your employment which is not effected pursuant to a Notice of 

Termination satisfying the requirements of paragraph 4.4 below (and, if applicable, paragraph 4.2 above); and for purposes 
of this Agreement no such purported termination shall be effective.  

For purpose of this Agreement, “Plan” shall mean any compensation plan such as an incentive, stock option or restricted stock 
plan or any employee benefit plan such as a thrift, pension, profit sharing, medical, disability, accident, life insurance, or relocation 
plan or policy or any other plan, program or policy of the Company intended to benefit employees.  

4.4 Notice of Termination. Any purported termination by the Company or by you following a Change in Control shall be 

communicated by written Notice of Termination to the other party hereto. For purposes of this Agreement, a “Notice of 
Termination” shall mean a notice which shall indicate the specific termination provision in this Agreement relied upon and shall 
set forth in reasonable detail the facts and circumstances claimed to provide a basis for termination of your employment under 
the provision so indicated.  

4.5 Date of Termination. “Date of Termination” shall mean (a) if your employment is to be terminated for Disability, thirty 
(30) days after Notice of Termination is given (provided that you shall not have returned to the performance of your duties on a 
full-time basis during such thirty (30) day period), (b) if your employment is to be terminated by the Company for Cause, the 
date on which a Notice of Termination is given, and (c) if your employment is to be terminated by you or by the Company for 
any other reason, the date  

Page 4 

  
specified in the Notice of Termination, which shall be a date no earlier than ninety (90) days after the date on which a Notice of 
Termination is given, unless an earlier date has been agreed to by the party receiving the Notice of Termination either in 
advance of, or after, receiving such Notice of Termination. Notwithstanding anything in the foregoing to the contrary, if the 
party receiving the Notice of Termination has not previously agreed to the termination, then within thirty (30) days after any 
Notice of Termination is given, the party receiving such Notice of Termination may notify the other party that a dispute exists 
concerning the termination, in which event the Date of Termination shall be the date set either by mutual written agreement of 
the parties or by the arbitrators in a proceeding as provided in Section 12 hereof.  

5. Compensation Upon Termination or During Disability.  

5.1 During any period following a Change in Control that you fail to perform your duties as a result of incapacity due to 

physical or mental illness, you shall continue to receive your full base salary at the rate then in effect and any benefits or awards 
under any Plans shall continue to accrue during such period, to the extent not inconsistent with such Plans, until your 
employment is terminated pursuant to and in accordance with paragraphs 4.1, 4.4 and 4.5 hereof. Thereafter, your benefits shall 
be determined in accordance with the Plans then in effect.  

5.2 If your employment shall be terminated for Cause or as a result of your death following a Change in Control of the 
Company, the Company shall pay you your full base salary through the Date of Termination at the rate in effect just prior to the 
time a Notice of Termination is given plus any benefits or awards (including both the cash and stock components) which 
pursuant to the terms of any Plans have been earned or become payable, but which have not yet been paid to you. Thereupon the 
Company shall have no further obligations to you under this Agreement.  

5.3 If within twenty-four (24) months after a Change in Control shall have occurred, as defined in Section 3 above, your 

employment by the Company shall be terminated (a) by the Company other than for Cause or Disability or (b) by you for Good 
Reason, then, by no later than the fifth day following the Date of Termination (except as otherwise provided), you shall be 
entitled to, and shall be paid, without regard to any contrary provisions of any Plan, a severance benefit (the “Severance 
Benefit”) equal to either (x) the Specified Benefits (as defined in subsection 5.3.1 below), or (y) the Capped Benefit (as defined 
in subsection 5.3.2 below). You shall be entitled, in your sole discretion, to elect to receive either the Specified Benefits or the 
Capped Benefit.  

5.3.1 The “Specified Benefits” are as follows:  

(a) the Company shall pay your full base salary through the Date of Termination at the rate in effect just prior 

to the time a Notice of Termination is given plus any benefits or awards (including both cash and stock components) 
which pursuant to the terms of any Plans have been earned or become payable, but which have not yet been paid to 
you (including amounts which previously had been deferred at your request);  

Page 5 

  
(b) as severance pay and in lieu of any further salary for periods subsequent to the Date of Termination, the 

Company shall pay to you in a single payment an amount in cash equal to (i) an amount equal to three (3) times the 
higher of (A) your annual base salary at the rate in effect just prior to the time a Notice of Termination is given, or 
(B) your annual base salary in effect immediately prior to the Change in Control of the Company, plus (ii) an 
amount equal to three (3) times the average of the cash bonuses paid to you during the previous three years;  

(c) for a thirty-six (36) month period after the Date of Termination, the Company shall arrange to provide you 
and your dependents with life, accident, medical and dental insurance benefits substantially similar to those which 
you were receiving immediately prior to the Change in Control of the Company. Notwithstanding the foregoing, the 
Company shall not provide any benefit otherwise receivable by you pursuant to this paragraph 5.3.1(c) to the extent 
that a similar benefit is actually received by you from a subsequent employer during such thirty-six (36) month 
period, and any such benefit actually received by you shall be reported to the Company;  

(d) any and all outstanding options to purchase stock of the Company (or any Successor) held by you shall 

immediately vest and become exercisable in full; and  

(e) the Company shall pay you for any vacation time earned but not taken at the Date of Termination, at an 
hourly rate equal to your annual base salary as in effect immediately prior to the time a Notice of Termination is 
given divided by 2080.  
5.3.2 The “Capped Benefit” equals the Specified Benefits, reduced by the minimum amount necessary to prevent any 

portion of the Specified Benefits from being a “parachute payment” as defined in Section 280G(b)(2) of the Internal 
Revenue Code of 1986, as amended (“IRC”), or any successor provision. The amount of the Capped Benefit shall therefore 
equal (1) three times the “base amount” as defined in IRC, Section 280G(b)(3)(A) reduced by $1 (One Dollar), and further 
reduced by (2) the present value of all other payments and benefits you are entitled to receive from the Company that are 
contingent upon a Change in Control of the Company within the meaning of IRC Section 280G(b)(2)(A)(i), including 
accelerated vesting of options and other awards under the Company’s stock option plans, and increased by (3) all Specified 
Benefits that are not contingent upon a Change in Control within the meaning of IRC Section 280G(b)(2)(A)(i). If you 
receive the Capped Benefit, you may determine the extent to which each of the Specified Benefits shall be reduced. The 
parties recognize that there is some uncertainty regarding the computations under IRC Section 280G which must be applied 
to determine the Capped Benefit. Accordingly, the parties agree that, after the Severance Benefit is paid, the amount of the 
Capped Benefit may be retroactively adjusted to the extent any subsequent Internal Revenue Service regulations, rulings, 
audits or other pronouncements establish that the original calculation of the Capped Benefit was incorrect. In that case, 
amounts shall be paid or reimbursed between the parties so that you will have received the Severance Benefit you would 
have received if the Capped Benefit had originally been calculated correctly.  
5.4 Except as specifically provided above, the amount of any payment provided for in this Section 5 shall not be reduced, 

offset or subject to recovery by the Company by reason of any compensation earned by you as the result of employment by 
another employer after the Date of Termination, or otherwise. Your entitlements under Section 5.3 are in addition to, and not in 
lieu of any rights, benefits or entitlements you may have under the terms or provisions of any Plan.  

Page 6 

  
6. Successors; Binding Agreement. 

6.1 The Company will seek to have any Successor (as hereinafter defined), by agreement in form and substance 

satisfactory to you, assume the Company’s obligations under this Agreement or assent to the fulfillment by the Company of its 
obligations under this Agreement. Failure of the Company to obtain such assumption or assent prior to or at the time a Person 
becomes a Successor shall constitute Good Reason for termination by you of your employment and, if a Change in Control of 
the Company has occurred, shall entitle you immediately to the benefits provided in Section 5.3 hereof upon delivery by you of 
a Notice of Termination which the Company, by executing this Agreement, hereby assents to. This Agreement will be binding 
upon and inure to the benefit of the Company and any Successor (and such Successor shall thereafter be deemed the “Company”
for purposes of this Agreement), but will not otherwise be assignable, transferable or delegable by the Company. For purposes 
of this Agreement, “Successor” shall mean any Person that succeeds to, or has the practical ability to control (either immediately 
or with the passage of time), the Company’s business directly, by merger, consolidation or purchase of assets, or indirectly, by 
purchase of the Company’s Voting Securities or otherwise.  

6.2 This Agreement shall inure to the benefit of and be enforceable by your personal or legal representatives, executors, 

administrators, successors, heirs, distributees, devisees and legatees. If you should die while any amount would still be payable 
to you hereunder if you had continued to live, all such amounts, unless otherwise provided herein, shall be paid in accordance 
with the terms of this Agreement to your devisee, legatee or other designee or, if there be no such designee, to your estate.  

7. Fees and Expenses. The Company shall pay all legal fees and related legal expenses incurred by you as a result of (i) your 
termination following a Change in Control of the Company (including all such fees and expenses, if any, incurred in contesting or 
disputing any such termination) or (ii) your seeking to obtain or enforce any right or benefit provided by this Agreement.  

8. Survival. The respective obligations of, and benefits afforded to, the Company and you as provided in Section 5, 6, 7 and 12 

of this Agreement shall survive termination of this Agreement.  

9. Notice. For the purposes of this Agreement, notices and all other communications provided for in this Agreement shall be in 

writing and shall be deemed to have been duly given when delivered or mailed by United States registered mail, return receipt 
requested, postage prepaid and addressed to the address of the respective party set forth on the first page of this Agreement, provided 
that all notices to the Company shall be directed to the attention of the Chairman of the Board or President of the Company, with a 
copy to the Secretary of the Company, or to such other address as either party may have furnished to the other in writing. In 
accordance herewith, except that notice of change of address shall be effective only upon receipt.  

Page 7 

  
10. Miscellaneous. No provision of this Agreement may be modified, waived or discharged unless such modification, waiver or 

discharge is agreed to in a writing signed by you and the Chairman of the Board or President of the Company. No waiver by either 
party hereto at any time of any breach by the other party hereto of, or of compliance with, any condition or provision of this 
Agreement to be performed by such other party shall be deemed a waiver of similar or dissimilar provisions or conditions at the same 
or at any prior or subsequent time. No agreements or representations, oral or otherwise, express or implied, with respect to the subject 
matter hereof have been made by either party which are not expressly set forth in this Agreement. The validity, interpretation, 
construction and performance of this Agreement shall be governed by the laws of the State of Oregon.  

11. Validity. The invalidity or unenforceability of any provision of this Agreement shall not affect the validity or enforceability 

of any other provision of this Agreement, which shall remain in full force and effect.  

12. Arbitration. Any dispute or controversy arising under or in connection with this Agreement shall be settled exclusively by 

arbitration in Portland, Oregon by three arbitrators in accordance with the rules of the American Arbitration Association then in 
effect. Judgment may be entered on the arbitrators’ award in any court having jurisdiction; provided, however, that you shall be 
entitled to seek specific performance of your right to be paid until the Date of Termination during the pendency of any dispute or 
controversy arising under or in connection with this Agreement. The Company shall bear all costs and expenses arising in connection 
with any arbitration proceeding pursuant to this Section 12.  

13. Related Agreements. To the extent that any provision of any other agreement between the Company or any of its subsidiaries 

and you shall limit, qualify or be inconsistent with any provision of this Agreement, then for purposes of this Agreement, while the 
same shall remain in force, the provision of this Agreement shall control and such provision of such other agreement shall be deemed 
to have been superseded, and to be of no force or effect, as if such other agreement had been formally amended to the extent 
necessary to accomplish such purpose.  

14. Counterparts. This Agreement may be executed in several counterparts, each of which shall be deemed to be an original, but 

all of which together will constitute one and the same instrument.  

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If this letter correctly sets forth our agreement on the subject matter hereof, kindly sign and return to the Company the enclosed 

copy of this letter which will then constitute our agreement on this subject.  

Sincerely,

/s/ William R. Tagmyer
William R. Tagmyer, Chairman of the Board
Northwest Pipe Company

AGREED AND ACCEPTED:

/s/ Brian W. Dunham
Brian W. Dunham
President and Chief Executive Officer

Page 9 

  
  
  
Exhibit 10.19 

July 28, 1999  
(As Amended December 31, 2008)  

Dear Senior Vice President:  

Northwest Pipe Company, an Oregon corporation (the “Company”), considers the establishment and maintenance of a sound 

and vital management to be essential to protecting and enhancing the best interest of the Company and its shareholders. In this 
connection, the Company recognizes that, as is the case with many publicly held corporations, the possibility of a Change in Control 
may exist and that such possibility, and the uncertainty and questions which it may raise among management, may result in the 
departure or distraction of management personnel to the detriment of the Company and its shareholders. Accordingly, the Board of 
Directors of the Company (the “Board”) has determined that appropriate steps should be taken to reinforce and encourage the 
continued attention and dedication of members of the Company’s management to their assigned duties without distraction in 
circumstances arising from the possibility of a Change in Control of the Company.  

In order to induce you to remain in the employ of the Company, this letter agreement, which has been approved by the Board, 

sets forth the severance benefits which the Company agrees will be provided to you in the event your employment with the Company 
is terminated subsequent to a “Change in Control” of the Company under the circumstances described below.  

1. Right to Terminate. The Company or you may terminate your employment at any time, subject to the Company’s obligations 

to provide the benefits hereinafter specified in accordance with the terms hereof.  

2. Term of Agreement. This Agreement shall commence on the date hereof and shall continue in effect until July 19, 2009; 
provided, however, that commencing on July 19, 2009 and each July 19 thereafter, the term of this Agreement shall automatically be 
extended for one additional year unless at least 90 days prior to such July 19 date, the Company or you shall have given notice that 
this Agreement shall not be extended; provided, however, that this Agreement shall continue in effect for a period of twenty-four 
(24) months beyond the term provided herein if a Change in Control, as defined in Section 3 hereto shall have occurred during such 
term. Notwithstanding anything in this Section 2 to the contrary, this Agreement shall terminate if you or the Company terminate your 
employment prior to a Change in Control as defined in Section 3 hereof.  

3. Change in Control; Person.  

3.1 For purposes of this Agreement, a “Change in Control” shall mean the occurrence of any of the following events:  

3.1.1 The approval by the shareholders of the Company of: 

(a) any consolidation, merger or plan of share exchange involving the Company (a “Merger”) in which the 

Company is not the continuing or surviving corporation or pursuant to which shares of Common Stock of the 
Company (“Company Shares”) would be converted into cash, securities or other property, other than a Merger 
involving Company Shares in which the holders of Company Shares immediately prior to the Merger have the same 
proportionate ownership of common stock of the surviving corporation immediately after the Merger,  

(b) any sale, lease, exchange or other transfer (in one transaction or a series of related transactions) of all, or 

substantially all, the assets of the Company; or  

(c) the adoption of any plan or proposal for the liquidation or dissolution of the Company.  

3.1.2 At any time during a period of two consecutive years, individuals who at the beginning of such period 
constituted the Board (“Incumbent Directors”) shall cease for any reason to constitute at least a majority thereof unless 
each new director elected during such two-year period was nominated or elected by two-thirds of the Incumbent Directors 
then in office and voting (with new directors nominated or elected by two-thirds of the Incumbent Directors also being 
deemed to be Incumbent Directors); or  

3.1.3 Any Person (as hereinafter defined) shall, as a result of a tender or exchange offer, open market purchases, or 

privately negotiated purchases from anyone other than the Company, have become the beneficial owner (within the 
meaning of Rule 13d-3 under the Securities Exchange Act of 1934), directly or indirectly, of securities of the Company 
ordinarily having the right to vote for the election of directors (“Voting Securities”) representing thirty percent (30%) or 
more of the combined voting power of the then outstanding Voting Securities.  

Notwithstanding anything in the foregoing to the contrary, unless otherwise determined by the Board, no Change in Control 
shall be deemed to have occurred for purposes of this Agreement if (1) you acquire (other than on the same basis as all other holders 
of the Company Shares) an equity interest in an entity that acquires the Company in a Change in Control otherwise described under 
subparagraph 3.1.1 above, or (2) you are part of a group that constitutes a Person which becomes a beneficial owner of Voting 
Securities in a transaction that otherwise would have resulted in a Change in Control under subparagraph 3.1.3 above.  

3.2 For purposes of this Agreement, the term “Person” shall mean and include any individual, corporation, partnership, 
group, association or other “person,” as such term is used in Section 13(d)(3) or Section 14(d)(2) of the Securities Exchange Act 
of 1934 (the “Exchange Act”), other than the Company or any employee benefit plan(s) sponsored by the Company.  

4. Termination Following Change In Control. If a Change in Control shall have occurred, you shall be entitled to the benefits 

provided in Section 5.3 hereof upon the termination of your employment within twenty-four (24) months after such Change in 
Control unless such termination is (a) because of your death, (b) by the Company for Cause or Disability or (c) by you other than for 
Good Reason (as all such capitalized terms are hereinafter defined).  

Page 2 

  
4.1 Disability. Termination by the Company of your employment based on “Disability” shall mean termination because of 
your absence from your duties with the Company on a full-time basis for one hundred eighty (180) consecutive days as a result 
of your incapacity due to physical or mental illness, unless within thirty (30) days after Notice of Termination (as hereinafter 
defined) is given to you following such absence you shall have returned to the full-time performance of your duties.  

4.2 Cause. Termination by the Company of your employment for “Cause” shall mean termination upon (a) the willful and 

continued failure by you to substantially perform your reasonably assigned duties with the Company consistent with those duties 
assigned to you prior to the Change in Control (other than any such failure resulting from your incapacity due to physical or 
mental illness) which failure shall not have been corrected within thirty (30) days after a demand for substantial performance is 
delivered to you by the Chairman of the Board or President of the Company which specifically identifies the manner in which 
such executive believes that you have not substantially performed your duties, or (b) the willful engaging by you in illegal 
conduct which is materially and demonstrably injurious to the Company. For purposes of this paragraph 4.2, no act, or failure to 
act, on your part shall be considered “willful” unless done, or omitted to be done, by you in knowing bad faith and without 
reasonable belief that your action or omission was in, or not opposed to, the best interests of the Company. Any act, or failure to 
act, based upon authority given pursuant to a resolution duly adopted by the Board or based upon the advice of counsel for the 
Company shall be conclusively presumed to be done, or omitted to be done, by you in good faith and in the best interests of the 
corporation. Notwithstanding the foregoing, you shall not be deemed to have been terminated for Cause unless and until there 
shall have been delivered to you a copy of a resolution duly adopted by the affirmative vote of not less than two-thirds of the 
entire membership of the Board at a meeting of the Board called and held for the purpose (after reasonable notice to you and an 
opportunity for you, together with your counsel, to be heard before the Board), finding that in the good faith opinion of the 
Board you were guilty of the conduct set forth above in (a) or (b) of this paragraph 4.2 and specifying the particulars thereof in 
detail.  

4.3 Good Reason. Termination by you of your employment for “Good Reason” shall mean termination based on:  
4.3.1 a change in your status, title, position(s) or responsibilities as an officer of the Company which, in your 
judgment (which shall be exercised in good faith), constitutes an adverse change from your status, title, position(s) and 
responsibilities as in effect immediately prior to the Change in Control, or the assignment to you of any duties or 
responsibilities which, in your judgment (which shall be exercised in good faith), are inconsistent with such status, title or 
position(s), or any removal of you from or any failure to reappoint or reelect you to such position(s), except in connection 
with the termination of your employment for Cause, Disability or as a result of your death or by you other than for Good 
Reason;  

4.3.2 a reduction by the Company in your base salary as in effect immediately prior to the Change in Control;  

Page 3 

  
4.3.3 the failure by the Company to continue in effect any Plan (as hereinafter defined) in which you are participating 

at the time of the Change in Control (or Plans providing you with at least substantially similar benefits) other than as a 
result of the normal expiration of any such Plan in accordance with its terms as in effect at the time of the Change in 
Control, or the taking of any action, or the failure to act, by the Company which would adversely affect your continued 
participation in any of such Plans on at least as favorable a basis to you as is the case on the date of the Change in Control 
or which would materially reduce your benefits in the future under any of such Plans or deprive you of any material benefit 
enjoyed by you at the time of the Change in Control;  

4.3.4 the failure by the Company to provide and credit you with the number of paid vacation days to which you are 

then entitled in accordance with the Company’s normal vacation policy as in effect immediately prior to the Change in 
Control;  

4.3.5 the Company’s requiring you to be based anywhere other than within ten (10) miles of where your office is 
located immediately prior to the Change in Control except for required travel on the Company’s business to an extent 
substantially consistent with the business travel obligations which you undertook on behalf of the Company prior to the 
Change in Control;  

4.3.6 the failure by the Company to obtain from any Successor (as hereinafter defined) the assumption or assent to 

this Agreement contemplated by Section 6 hereof within thirty (30) days after a Change in Control; or  

4.3.7 any purported termination by the Company of your employment which is not effected pursuant to a Notice of 

Termination satisfying the requirements of paragraph 4.4 below (and, if applicable, paragraph 4.2 above); and for purposes 
of this Agreement no such purported termination shall be effective.  

For purpose of this Agreement, “Plan” shall mean any compensation plan such as an incentive, stock option or restricted stock 
plan or any employee benefit plan such as a thrift, pension, profit sharing, medical, disability, accident, life insurance, or relocation 
plan or policy or any other plan, program or policy of the Company intended to benefit employees.  

4.4 Notice of Termination. Any purported termination by the Company or by you following a Change in Control shall be 

communicated by written Notice of Termination to the other party hereto. For purposes of this Agreement, a “Notice of 
Termination” shall mean a notice which shall indicate the specific termination provision in this Agreement relied upon and shall 
set forth in reasonable detail the facts and circumstances claimed to provide a basis for termination of your employment under 
the provision so indicated.  

4.5 Date of Termination. “Date of Termination” shall mean (a) if your employment is to be terminated for Disability, thirty 
(30) days after Notice of Termination is given (provided that you shall not have returned to the performance of your duties on a 
full-time basis during such thirty (30) day period), (b) if your employment is to be terminated by the Company for Cause, the 
date on which a Notice of Termination is given, and (c) if your employment is to be terminated by you or by the Company for 
any other reason, the date  

Page 4 

  
specified in the Notice of Termination, which shall be a date no earlier than ninety (90) days after the date on which a Notice of 
Termination is given, unless an earlier date has been agreed to by the party receiving the Notice of Termination either in 
advance of, or after, receiving such Notice of Termination. Notwithstanding anything in the foregoing to the contrary, if the 
party receiving the Notice of Termination has not previously agreed to the termination, then within thirty (30) days after any 
Notice of Termination is given, the party receiving such Notice of Termination may notify the other party that a dispute exists 
concerning the termination, in which event the Date of Termination shall be the date set either by mutual written agreement of 
the parties or by the arbitrators in a proceeding as provided in Section 12 hereof.  

5. Compensation Upon Termination or During Disability.  

5.1 During any period following a Change in Control that you fail to perform your duties as a result of incapacity due to 

physical or mental illness, you shall continue to receive your full base salary at the rate then in effect and any benefits or awards 
under any Plans shall continue to accrue during such period, to the extent not inconsistent with such Plans, until your 
employment is terminated pursuant to and in accordance with paragraphs 4.1, 4.4 and 4.5 hereof. Thereafter, your benefits shall 
be determined in accordance with the Plans then in effect.  

5.2 If your employment shall be terminated for Cause or as a result of your death following a Change in Control of the 
Company, the Company shall pay you your full base salary through the Date of Termination at the rate in effect just prior to the 
time a Notice of Termination is given plus any benefits or awards (including both the cash and stock components) which 
pursuant to the terms of any Plans have been earned or become payable, but which have not yet been paid to you. Thereupon the 
Company shall have no further obligations to you under this Agreement.  

5.3 If within twenty-four (24) months after a Change in Control shall have occurred, as defined in Section 3 above, your 

employment by the Company shall be terminated (a) by the Company other than for Cause or Disability or (b) by you for Good 
Reason, then, by no later than the fifth day following the Date of Termination (except as otherwise provided), you shall be 
entitled to, and shall be paid, without regard to any contrary provisions of any Plan, a severance benefit (the “Severance 
Benefit”) equal to either (x) the Specified Benefits (as defined in subsection 5.3.1 below), or (y) the Capped Benefit (as defined 
in subsection 5.3.2 below). You shall be entitled, in your sole discretion, to elect to receive either the Specified Benefits or the 
Capped Benefit.  

5.3.1 The “Specified Benefits” are as follows:  

(a) the Company shall pay your full base salary through the Date of Termination at the rate in effect just prior 

to the time a Notice of Termination is given plus any benefits or awards (including both cash and stock components) 
which pursuant to the terms of any Plans have been earned or become payable, but which have not yet been paid to 
you (including amounts which previously had been deferred at your request);  

Page 5 

  
(b) as severance pay and in lieu of any further salary for periods subsequent to the Date of Termination, the 

Company shall pay to you in a single payment an amount in cash equal to (i) an amount equal to two (2) times the 
higher of (A) your annual base salary at the rate in effect just prior to the time a Notice of Termination is given, or 
(B) your annual base salary in effect immediately prior to the Change in Control of the Company, plus (ii) an 
amount equal to two (2) times the average of the cash bonuses paid to you during the previous three years;  

(c) for a twenty-four (24) month period after the Date of Termination, the Company shall arrange to provide 

you and your dependents with life, accident, medical and dental insurance benefits substantially similar to those 
which you were receiving immediately prior to the Change in Control of the Company. Notwithstanding the 
foregoing, the Company shall not provide any benefit otherwise receivable by you pursuant to this paragraph 5.3.1
(c) to the extent that a similar benefit is actually received by you from a subsequent employer during such twenty-
four (24) month period, and any such benefit actually received by you shall be reported to the Company;  

(d) any and all outstanding options to purchase stock of the Company (or any Successor) held by you shall 

immediately vest and become exercisable in full; and  

(e) the Company shall pay you for any vacation time earned but not taken at the Date of Termination, at an 
hourly rate equal to your annual base salary as in effect immediately prior to the time a Notice of Termination is 
given divided by 2080.  
5.3.2 The “Capped Benefit” equals the Specified Benefits, reduced by the minimum amount necessary to prevent any 

portion of the Specified Benefits from being a “parachute payment” as defined in Section 280G(b)(2) of the Internal 
Revenue Code of 1986, as amended (“IRC”), or any successor provision. The amount of the Capped Benefit shall therefore 
equal (1) three times the “base amount” as defined in IRC, Section 280G(b)(3)(A) reduced by $1 (One Dollar), and further 
reduced by (2) the present value of all other payments and benefits you are entitled to receive from the Company that are 
contingent upon a Change in Control of the Company within the meaning of IRC Section 280G(b)(2)(A)(i), including 
accelerated vesting of options and other awards under the Company’s stock option plans, and increased by (3) all Specified 
Benefits that are not contingent upon a Change in Control within the meaning of IRC Section 280G(b)(2)(A)(i). If you 
receive the Capped Benefit, you may determine the extent to which each of the Specified Benefits shall be reduced. The 
parties recognize that there is some uncertainty regarding the computations under IRC Section 280G which must be applied 
to determine the Capped Benefit. Accordingly, the parties agree that, after the Severance Benefit is paid, the amount of the 
Capped Benefit may be retroactively adjusted to the extent any subsequent Internal Revenue Service regulations, rulings, 
audits or other pronouncements establish that the original calculation of the Capped Benefit was incorrect. In that case, 
amounts shall be paid or reimbursed between the parties so that you will have received the Severance Benefit you would 
have received if the Capped Benefit had originally been calculated correctly.  
5.4 Except as specifically provided above, the amount of any payment provided for in this Section 5 shall not be reduced, 

offset or subject to recovery by the Company by reason of any compensation earned by you as the result of employment by 
another employer after the Date of Termination, or otherwise. Your entitlements under Section 5.3 are in addition to, and not in 
lieu of any rights, benefits or entitlements you may have under the terms or provisions of any Plan.  

page 6 

  
6. Successors; Binding Agreement. 

6.1 The Company will seek to have any Successor (as hereinafter defined), by agreement in form and substance 

satisfactory to you, assume the Company’s obligations under this Agreement or assent to the fulfillment by the Company of its 
obligations under this Agreement. Failure of the Company to obtain such assumption or assent prior to or at the time a Person 
becomes a Successor shall constitute Good Reason for termination by you of your employment and, if a Change in Control of 
the Company has occurred, shall entitle you immediately to the benefits provided in Section 5.3 hereof upon delivery by you of 
a Notice of Termination which the Company, by executing this Agreement, hereby assents to. This Agreement will be binding 
upon and inure to the benefit of the Company and any Successor (and such Successor shall thereafter be deemed the “Company”
for purposes of this Agreement), but will not otherwise be assignable, transferable or delegable by the Company. For purposes 
of this Agreement, “Successor” shall mean any Person that succeeds to, or has the practical ability to control (either immediately 
or with the passage of time), the Company’s business directly, by merger, consolidation or purchase of assets, or indirectly, by 
purchase of the Company’s Voting Securities or otherwise.  

6.2 This Agreement shall inure to the benefit of and be enforceable by your personal or legal representatives, executors, 

administrators, successors, heirs, distributees, devisees and legatees. If you should die while any amount would still be payable 
to you hereunder if you had continued to live, all such amounts, unless otherwise provided herein, shall be paid in accordance 
with the terms of this Agreement to your devisee, legatee or other designee or, if there be no such designee, to your estate.  

7. Fees and Expenses. The Company shall pay all legal fees and related legal expenses incurred by you as a result of (i) your 
termination following a Change in Control of the Company (including all such fees and expenses, if any, incurred in contesting or 
disputing any such termination) or (ii) your seeking to obtain or enforce any right or benefit provided by this Agreement.  

8. Survival. The respective obligations of, and benefits afforded to, the Company and you as provided in Section 5, 6, 7 and 12 

of this Agreement shall survive termination of this Agreement.  

9. Notice. For the purposes of this Agreement, notices and all other communications provided for in this Agreement shall be in 

writing and shall be deemed to have been duly given when delivered or mailed by United States registered mail, return receipt 
requested, postage prepaid and addressed to the address of the respective party set forth on the first page of this Agreement, provided 
that all notices to the Company shall be directed to the attention of the Chairman of the Board or President of the Company, with a 
copy to the Secretary of the Company, or to such other address as either party may have furnished to the other in writing. In 
accordance herewith, except that notice of change of address shall be effective only upon receipt.  

Page 7 

  
10. Miscellaneous. No provision of this Agreement may be modified, waived or discharged unless such modification, waiver or 

discharge is agreed to in a writing signed by you and the Chairman of the Board or President of the Company. No waiver by either 
party hereto at any time of any breach by the other party hereto of, or of compliance with, any condition or provision of this 
Agreement to be performed by such other party shall be deemed a waiver of similar or dissimilar provisions or conditions at the same 
or at any prior or subsequent time. No agreements or representations, oral or otherwise, express or implied, with respect to the subject 
matter hereof have been made by either party which are not expressly set forth in this Agreement. The validity, interpretation, 
construction and performance of this Agreement shall be governed by the laws of the State of Oregon.  

11. Validity. The invalidity or unenforceability of any provision of this Agreement shall not affect the validity or enforceability 

of any other provision of this Agreement, which shall remain in full force and effect.  

12. Arbitration. Any dispute or controversy arising under or in connection with this Agreement shall be settled exclusively by 

arbitration in Portland, Oregon by three arbitrators in accordance with the rules of the American Arbitration Association then in 
effect. Judgment may be entered on the arbitrators’ award in any court having jurisdiction; provided, however, that you shall be 
entitled to seek specific performance of your right to be paid until the Date of Termination during the pendency of any dispute or 
controversy arising under or in connection with this Agreement. The Company shall bear all costs and expenses arising in connection 
with any arbitration proceeding pursuant to this Section 12.  

13. Related Agreements. To the extent that any provision of any other agreement between the Company or any of its subsidiaries 

and you shall limit, qualify or be inconsistent with any provision of this Agreement, then for purposes of this Agreement, while the 
same shall remain in force, the provision of this Agreement shall control and such provision of such other agreement shall be deemed 
to have been superseded, and to be of no force or effect, as if such other agreement had been formally amended to the extent 
necessary to accomplish such purpose.  

14. Counterparts. This Agreement may be executed in several counterparts, each of which shall be deemed to be an original, but 

all of which together will constitute one and the same instrument.  

Page 8 

  
If this letter correctly sets forth our agreement on the subject matter hereof, kindly sign and return to the Company the enclosed 

copy of this letter which will then constitute our agreement on this subject.  

Sincerely,

/s/ Brian W. Dunham
Brian W. Dunham, President
Northwest Pipe Company

AGREED AND ACCEPTED:

Page 9 

  
  
  
  
EXHIBIT 21

NORTHWEST PIPE COMPANY
SUBSIDIARIES OF THE REGISTRANT

Thompson Tanks Mexico S.A. de C.V.

Thompson Tank Holdings, Inc.

Northwest Pipe Mexico S.A. de C.V

Northwest Pipe Asia Pte. Ltd.

EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Nos. 333-20165, 333-20167, 333-64083,
333-68176, and 333-152573 on Form S-8 of our reports dated March 12, 2009, relating to (1) the 2008 and 2007
financial statements and financial statement schedules and the retrospective adjustments to the 2006 financial
statements and financial statement disclosures of Northwest Pipe Company and subsidiaries (the “Company”)
which report expresses an unqualified opinion and includes an explanatory paragraph regarding the retrospective
adjustments to the 2006 consolidated financial statements for the change in the segments of the Company
discussed in Note 16 and (2) the effectiveness of the Company’s internal control over financial reporting as of
December 31, 2008, appearing in this Annual Report on Form 10-K of Northwest Pipe Company and subsidiaries
for the year ended December 31, 2008.

/s/ Deloitte & Touche LLP

Portland, Oregon
March 12, 2009

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos.
333-20165, 333-20167, 333-64083, 333-68176 and 333-152573) of Northwest Pipe Company of our report dated
March 30, 2007 relating to the 2006 financial statements and financial statement schedule, which appears in this
Form 10-K.

EXHIBIT 23.2

/s/ PricewaterhouseCoopers LLP

Portland, Oregon
March 12, 2009

I, Brian W. Dunham, certify that:

CERTIFICATION

EXHIBIT 31.1

1.

I have reviewed this annual report on Form 10-K of Northwest Pipe Company;

2. Based on my knowledge, this annual report does not contain any untrue statement of a material fact or
omit to state a material fact necessary to make the statements made, in light of the circumstances under
which such statements were made, not misleading with respect to the period covered by this annual
report;

3. Based on my knowledge, the financial statements, and other financial information included in this
annual report, fairly present in all material respects, the financial condition, results of operations and
cash flows of the registrant as of, and for, the periods presented in this annual report;

4.

The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining
disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and
internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for
the registrant and we have:

a.

b.

c.

d.

designed such disclosure controls and procedures, or caused such disclosure controls and
procedures to be designed under our supervision, to ensure that material information relating to
the registrant, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this annual report is being prepared;

designed such internal control over financial reporting, or caused such internal control over
to provide reasonable assurance
financial reporting to be designed under our supervision,
regarding the reliability of financial reporting and the preparation of financial statements for
external purposes in accordance with generally accepted accounting principles;

evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in
this report our conclusions about the effectiveness of the disclosure controls and procedures, as of
the end of the period covered by this report based on such evaluation; and

disclosed in this report any change in the registrant’s internal control over financial reporting that
occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in
the case of an annual report) that has materially affected, or is reasonably likely to materially
affect, the registrant’s internal control over financial reporting; and

5.

The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of
internal control over financial reporting, to the registrant’s auditors and the audit committee of the
registrant’s board of directors (or persons performing the equivalent functions):

a.

b.

all significant deficiencies in the design or operation of internal controls which could adversely
affect the registrant’s ability to record, process, summarize and report financial information; and

any fraud, whether or not material, that involves management or other employees who have a
significant role in the registrant’s internal controls over financial reporting.

Date: March 12, 2009

By:

/s/ BRIAN W. DUNHAM

Brian W. Dunham
President and Chief Executive Officer

EXHIBIT 31.2

I, Stephanie J. Welty, certify that:

CERTIFICATION

1.

I have reviewed this annual report on Form 10-K of Northwest Pipe Company;

2. Based on my knowledge, this annual report does not contain any untrue statement of a material fact or
omit to state a material fact necessary to make the statements made, in light of the circumstances under
which such statements were made, not misleading with respect to the period covered by this annual
report;

3. Based on my knowledge, the financial statements, and other financial information included in this
annual report, fairly present in all material respects, the financial condition, results of operations and
cash flows of the registrant as of, and for, the periods presented in this annual report;

4.

The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining
disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and
internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for
the registrant and we have:

a.

b.

c.

d.

designed such disclosure controls and procedures, or caused such disclosure controls and
procedures to be designed under our supervision, to ensure that material information relating to
the registrant, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this annual report is being prepared;

designed such internal control over financial reporting, or caused such internal control over
to provide reasonable assurance
financial reporting to be designed under our supervision,
regarding the reliability of financial reporting and the preparation of financial statements for
external purposes in accordance with generally accepted accounting principles;

evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in
this report our conclusions about the effectiveness of the disclosure controls and procedures, as of
the end of the period covered by this report based on such evaluation; and

disclosed in this report any change in the registrant’s internal control over financial reporting that
occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in
the case of an annual report) that has materially affected, or is reasonably likely to materially
affect, the registrant’s internal control over financial reporting; and

5.

The registrant’s other certifying officers and I have disclosed, based on our most recent evaluation, to
the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons
performing the equivalent function):

a.

b.

all significant deficiencies in the design or operation of internal controls which could adversely
affect the registrant’s ability to record, process, summarize and report financial information; and

any fraud, whether or not material, that involves management or other employees who have a
significant role in the registrant’s internal controls over financial reporting.

Date: March 12, 2009

By:

/s/ STEPHANIE J. WELTY

Stephanie J. Welty
Senior Vice President, Chief Financial Officer
(Principal Financial Officer)

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 32.1

In connection with the Annual Report of Northwest Pipe Company (the “Company”) on Form 10-K for the
period ending December 31, 2008 as filed with the Securities and Exchange Commission on the date hereof (the
“Report”), I, Brian W. Dunham, President and Chief Executive Officer of the Company, certify, pursuant to 18
U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of

1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and

results of operations of the Company.

/s/ BRIAN W. DUNHAM

Brian W. Dunham
President and Chief Executive Officer

March 12, 2009

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 32.2

In connection with the Annual Report of Northwest Pipe Company (the “Company”) on Form 10-K for the
period ending December 31, 2008 as filed with the Securities and Exchange Commission on the date hereof (the
“Report”), I, Stephanie J. Welty, Senior Vice President, Chief Financial Officer of the Company, certify,
pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of

1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and

result of operations of the Company.

/s/ STEPHANIE J. WELTY

Stephanie J. Welty
Senior Vice President, Chief Financial Officer

March 12, 2009