June 17, 2026: W Lake Sammamish Pkwy SE Storm Retrofit. The W Lake Sammamish Pkwy (WLSP) SE and I-90 Storm Water Quality Retrofit Project is a city of Bellevue Utilities Department capital improvement project. The project is intended to improve stormwater quality for runoff originating from both the Washington State Department of Transportation (WSDOT) and the City-owned impervious areas. The existing stormwater pond will be replaced with a water quality treatment facility including a pretreatment system and a flow diversion structure. Work will also include clearing and grubbing and replacing existing storm pipes. The site will be restored with landscape and tree plantings.

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