George Davis Creek Fish Passage Project – Project Update

Design for the George Davis Creek Fish Passage Project resumed this year and the City expects to construct improvements during the summer of 2026. The project will restore salmon and riparian habitat for the lower 1000-feet of George Davis Creek. 

This work will include the removal of several culvert pipes and a high-flow bypass system that are not currently fish passable. The design includes a short-span bridge with a new 17-foot span box culvert where the stream crosses beneath East Lake Sammamish Parkway near Northeast 7th Court. In conjunction with King County, this project will also remove and replace the culverts going under the East Lake Sammamish Trail. 

The project will also reduce flooding and sedimentation caused by the high flow bypass (built by King County in 1996). This bypass system helps prevent flooding of residential parcels and East Lake Sammamish trail but necessitates costly maintenance for the City to remove excess sediment buildup at the outfall of Lake Sammamish each year.

This project is partially funded by grants from the Brian Abbott Fish Barrier Removal Board, Department of Commerce Direct Appropriation grant, and King County Flood Reduction grant. The City is collaborating with King County and our Tribal partners to ensure the project meets design requirements to improve fish habitat and flood control.

To learn more visit our website: 

www.sammamish.us/projects/george-

davis-creek-fish-passage-culvert/