what we do

The 8-mile Tulalip Water Pipeline will provide drinkable water to the Tulalip Tribes and surrounding communities. It will also provide clean water to support fisheries and salmon runs in the Snohomish River basin. Parametrix developed an initial feasibility study for the project and has completed design and managed pipeline construction. The pipeline crosses under a total of five bodies of water. To minimize or eliminate impacts to these water bodies, the pipe was directionally drilled. The length of the directional drilling ranged from 1,200 to 3,600 feet. This was one of the largest directional drilling efforts in the Pacific Northwest. One of the challenges of the directional drilling effort was to find a construction staging area that was large enough to support the drilling effort and provide space for the steel pipes to be welded together. Parametrix found a suitable construction staging area and gained approval from WSDOT to use the adjacent highway right-of-way.

• Bronze Award, ACEC Washington, 2014