This ecologically important project is part of Washington State’s response to the U.S. District Court’s 2013 ruling on infrastructure blockages to the native fish habitats, an issue raised by 21 northwest Washington Tribes. The ruling required the state to open 90% of potential upstream habitats by 2030. WSDOT will replace outdated culverts with concrete box culverts, steel-arched culverts, or bridges to increase the likelihood of salmon and steelhead migration through the channels.
WSDOT, together with the Washington Department of Fish and Wildlife, has identified 413 culverts currently blocking critical fish migration. This first Alternative Delivery contract will select a Progressive Design-Build team to correct the first grouping of 29 passage locations. Overall scope includes design and construction of compliant structures, stream and habitat restoration, roadway restoration, complex construction staging, removal of the existing 9 stream crossing structures, and traffic maintenance. Once complete, this project will successfully restore nearly 37 miles of potential habitat across the Olympic Peninsula.
Mission Critical’s Impact
Mission Critical’s work was essential to connecting the team’s nationwide experience with local expertise and shared personnel experiences. Our daily, collaborative work with the team was a key component in identifying unique strengths and qualities. This effort enabled the Walsh/Stantec team to stand out from the competition and achieve a competitive shortlist position from WSDOT.