|Sub-Basin 26 Phase 2 Watercourse Improvement|
City Stormwater Regulations
NOTE: Effective June 2017, new stormwater mangement regulations will be in place for private development projects. Click here for more information.
The following is a list of regulations/design manuals adopted by the City of Mercer Island:
Guidance / Handouts
The following is a list of informational handouts and guidance regarding stormwater.