Reconnecting waterways where our roads act as barriers is a priority for the state. In western Washington, that means building hundreds of fish passable structures under state highways to create habitat essential for meeting fish recovery goals. Beginning in late 2024, WSDOT will begin installing new fish passable structures that carry five different creeks under SR 169. Two of these creeks are located north of Black Diamond, the other three are south of Black Diamond.
What to expect
WSDOT will select a qualified design-build contractor to complete the design of the fish passable structures for the creeks under SR 169. Highway closure needs method proposed by the contractor. will be determined by the type of structure and the construction.
This project is being combined into a single contract with another fish passage project on SR 509. Work could start as soon as late 2024. However, work at the Ginder Creek location north of Black Diamond cannot begin before 2026. We anticipate culvert replacement work on SR 169 could take up to two years.