About Us

Northwest Pipe Company manufactures products to serve America’s water infrastructure market. We are the largest manufacturer of engineered steel water pipe systems in North America and offer a complete line of precast and reinforced concrete products through Geneva Pipe and Precast as well as Permalok®, our proprietary steel casing pipe. Founded in 1966, we take great pride in providing the highest quality products to the most exacting and challenging specifications. Headquartered in Vancouver, Washington, the Company has 10 manufacturing facilities strategically positioned in the United States and Mexico.

Our experienced staff of manufacturing and engineering professionals provide the highest quality products for a wide range of applications. The systems we produce are custom manufactured to accommodate an almost infinite number of configuration requirements. To support municipalities, public agencies, water boards, and other project stakeholders, we provide engineering consultation, specification review, estimating, and on-site installation support.

Northwest Pipe Company is committed to providing quality products and services to our customers. We continually monitor and improve the performance of our quality management systems and objectives in response with customer needs. Adhering to the national standard set forth by the American Water Works Association, the American Society for Testing and Materials, the American Concrete Pipe Association, and the American Association of State Highway and Transportation, our Company ensures that quality assurance checks are completed at every manufacturing process.

Northwest Pipe Company has a multi-site certificate of conformance (Certificate No. 33609) for ISO 9001:2015 for the design and manufacturer of welded, bare, lined, and coated steel pipe and fittings.

Corporate Headquarters
201 NE Park Plaza Drive
Suite 100
Vancouver, WA 98684
(360) 397-6250

Portland Plant
12005 N Burgard
Portland, OR 97203
(503) 285-1400

Adelanto Plant
12351 Rancho Road
Adelanto, CA 92301
(760) 246-3191

Tracy Plant
10100 W. Linne Rd.
Tracy, CA 95377
(209) 836-5050

Parkersburg Plant
183 N Northwest Drive
Washington, WV 26181
(304) 863-3316

St. Louis Plant
472 Paul Ave
St. Louis, MO 63135
(314) 524-1900

Saginaw Plant
351 Longhorn Rd.
Saginaw, TX 76179
(817) 847-1402

SLRC Plant
Via Ameron No. 100
Interior B, Col. Las Adelitas
San Luis Rio Colorado, Sonora, C.P. 83520
01152 1 6535772200

Geneva Pipe Plants

Orem Plant
1465 West 400 North
Orem, UT 84057
(801) 225-2416

Salt Lake City Plant
3355 Harvey Milk Blvd
Salt Lake City, UT 84104
(801) 924-1396

St. George Plant
990 South 100 Est
Washington, UT 84780
(435) 673-6790

Northwest Pipe Company is the largest manufacturer of engineered steel water pipe systems in North America. With our water transmission manufacturing facilities locate across North America, we are positioned to meet the country’s growing needs for water and wastewater infrastructure.

The Water Transmission Group serves a wide range of markets including water transmission, plant piping, low pressure and gravity flow, energy, tunnels, structural, industrial, and large-diameter pressure pipe rehabilitation. We offer a wide range of custom fabrications ranging from elbows, flanges and tees to ring girders and bifurcations.

Geneva Pipe and Precast

A Northwest Company Pipe

Geneva Pipe, Inc., a Northwest Pipe Company, manufactures high-quality precast and reinforced concrete products including reinforced concrete pipe, box culverts, manholes, vaults, catch basins and inlets, sanitary sewer products, bridge structures, stormwater treatment, septic tanks and grease traps, electrical vaults, cattle guards, block retaining walls, and reinforced concrete pipe (RCP).

The recent acquisition of Geneva broadens Northwest Pipe Company’s product offering in the water infrastructure market. With three manufacturing facilities in Utah, Geneva provides a diverse range of infrastructure products while continuing to provide excellent service, quality products, and reliable resources for engineers, public agencies, developers, and contractors.

Permalok Steel Casing Pipe


A Northwest Company Pipe

Enhancing our product offerings is Permalok® steel casing pipe, a proprietary interlocking push joint system that eliminates the need to field butt-weld traditional plain-ended steel casing pipe. Permalok® joined the Northwest Pipe family in 2014 and enables us to provide high-quality casing pipe on water, sewer, and utility pipeline projects.

We provide several different types of connection systems as well as a host of linings and coatings for corrosion protection for structural protection of a carrier pipe while crossing under or over roads, railways, rivers, or other obstacles.