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Our Engineering Team consists of Development Review Engineers who review development applications for private stormwater and utility improvements.
Stormwater regulations, design manuals, handouts and worksheets. Stormwater review typically occurs concurrently with building permit review, unless there is not a related building permit application.
The following standard details are provided for construction in right of way and private property where applicable.
See links below for standard details.
Low Impact Development (LID), focuses on rainwater once it lands on a surface. LID seeks to mimic natural hydrology and slow, evaporate or transpire, and filter rainwater, before it reaches a stream or Lake Washington.
The City of Mercer Island operates under a stormwater discharge permit from the Washington State Department of Ecology similar to other cities in Washington with populations greater than 10,000. This NPDES permit is authorized by the Federal Clean Water Act and implemented by the Washington State Department of Ecology (DOE). The NPDES permit requires cities and counties to adopt stormwater management control standards. Mercer Island is one of 100 cities that must comply with these regulations.
The Public Works Department is responsible for the planning, design, construction, and maintenance of the City’s essential infrastructure:
City Hall is closed. Follow this link for the latest facility and program information.
9611 SE 36th Street Mercer Island, WA 98040 Phone: (206) 275-7605 Email: epermit.tech@mercerisland.gov
