Northwest Pipe Company is the leading manufacturer of highly engineered pipeline systems for the transmission and distribution of water and wastewater.

We employ a staff of professional engineers and manufacturing and fabrication professionals to provide the highest quality products for a wide range of applications. Our services range from engineering consultation and estimating through manufacture and on-site installation support. The systems we produce can accommodate an almost infinite number of configuration requirements.
We provide several different types of lining and coating solutions, including cement mortar, coal tar enamel, polyethylene tapes, and other corrosion resistant materials. We offer a wide range of custom fabrications ranging from elbows, flanges and tees to ring girders and bifurcations.