North Fork Road/Kenney Creek Fish Passage Culvert

The Kenney Creek fish passage was identified as the highest priority barrier removal project in the Whatcom County road system because it blocked access to 1.5 miles of high-quality spawning and rearing habitat for multiple salmonid populations. Coffman helped restore 100% of the fish passage across this critical water crossing while providing the greatest possible value to the County.

The project included the replacement of a five-foot-diameter corrugated steel culvert located under approximately 20 feet of road fill. Immediately downstream, an existing fishway owned by the Washington State Department of Fish and Wildlife (WDFW) was replaced. Coffman completed the Alternatives Analysis Report and finalized the detailed design of the preferred alternative. The design features a simple bridge structure that minimizes future maintenance costs, provides 100% fish passage, and enhances fish habitat in Kenney Creek.