Van Zandt, WA
SR-9 Tawes Creek Fish Passage
Working with WSDOT on a sensitive project to improve fish habitat
This fish passage improvement work opened more than 11,000 feet of additional habitat for salmon and Searun Cutthroat trout. IMCO removed three fish barriers under State Route 9 in Whatcom County. The existing round culverts had too steep of a slope, too much distance between the culvert and the water, and too swift a current for fish to easily swim through.
IMCO crews removed and replaced the Tawes Creek culvert with a 20-foot bridge. The previous culverts on the two tributaries were replaced with larger, 12-foot wide, box culverts. Upon completion, the bridge and new culverts helped restore the creek bed to a natural state and improved fish passage in the area.
Owner
Washington State Department of Transportation
Contract Amount
$3.2 million
Duration
2019
Construction Services
Design-Bid-BuildPreconstruction Services
