City of Sammamish

Louis Thompson
The improvements on Louis Thompson Road from 210th Place Southeast to Eastlake Sammamish Parkway Northeast will upgrade the existing stormwater conveyance, culvert, and ditch systems in the area and alleviate the flooding, erosion, and landslide issues while providing stormwater treatment. In addition, the project adds a sidewalk and a bike lane on the north (downhill) side of the road to provide more non-motorized connectivity to the community.

To learn more:

sammamish.us/projects/louis-thompson-tightline

East Lake Sammamish
East Lake Sammamish Parkway is located along the eastern shore of Lake Sammamish and extends between SR-202 to the north and I-90 to the south. Significant and ongoing surface settlement and cracking has been observed. The goal of this project is to evaluate two design options for repairing the embankment, determine the best value concept for future design and construction, and to complete a 30 percent design of the preferred alternative.

George Davis Creek Fish Passage & Storm Improvement Project
This project will improve a stormwater culvert that continues to be a maintenance challenge. The culvert improvements also result in redirecting George Davis Creek and require the new culvert to be fish-passable. The City is designing a new fish-passable culvert under East Lake Sammamish Parkway, removing other fish passage barriers, and daylighting George Davis Creek from its mouth at Lake Sammamish to the east side of East Lake Sammamish Parkway, opening one river mile of spawning habitat to kokanee salmon.

To learn more: sammamish.us/projects/george-davis-creek-fish-passage-culvert/

Hazel Wolf Culvert Improvement Project
This project will replace an existing undersized culvert to increase flow capacity and reduce flooding on West Beaver Lake Drive.

To learn more: sammamish.us/projects/hazel-wolf-culvert improvement-project/

212th Flood Mitigation
The 212th Avenue Southeast corridor is a critical north-south connection on the west side of the city and was established almost 100 years ago. Prior roadway improvements included the installation of gabion baskets and sidewalk along the west side of 212th Avenue in the early 2000s. The planned study evaluates options for improvements on 212th Avenue Southeast to address road stability and flooding, as it crosses Ebright Creek. The study will review opportunities for near-term (2025) improvements as well as long-term solutions for the roadway.

To learn more: sammamish.us/projects/212th-flood-study/

Bike and Pedestrian Mobility Plan
Public Works is currently developing a Bike & Pedestrian plan, which will include information about existing conditions, estimations of future conditions, provide a gap analysis, and a list of proposed projects with associated costs. A community workshop is scheduled for Feb. 26, 2025 from 6 - 7:30pm in City Council Chambers with a live-stream option.

To learn more:

sammamish.us/government/public-works/transportation-planning/bike-and-pedestrian-mobility-plan/