Philadelphia International Airport Runway 27L Extension
Its strength to withstand the weight of a loaded plane landing and joints that sufficiently withstand any exposure to jet fuel and other petroleum-based fuel products, make Permalok steel casing pipe an ideal material for this microtunneling project at a busy airport.
Permalok Steel Casing Pipe
Racine Water Transmission Expansion
Northwest Pipe teamed with a water agency and engineering firm that had no previous steel pipe experience to demonstrate steel pipe capabilities to successfully supply pipe for multiple phases of this water transmission project.
Engineered Steel Water Pipe
Denver Water Conduit 12 Relocation
As a testament to the longevity of steel pipe, this project replaced a section of pipe from a waterline originally installed in the 1920s. The replacement was due to a waterline reroute—not from wear.
Lower Bois d’Arc Raw Water Pipeline
The Bois d’Arc raw water pipeline is a monumental project requiring an experienced manufacturer with a proven track record of delivering pipe to multiple installation contractors and delivery locations, while ensuring all pipe meets project specifications, CMAR/Owner expectations, and AWWA standards.