Environmental Rules in Dearborn, MI (2026)
4 verified environmental rules for Dearborn, Michigan, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Dearborn operates a separate stormwater system discharging to the Rouge River under a state MS4 permit. New construction over 1 acre must meet EGLE Part 91 soil erosion and stormwater standards.
Dearborn Stormwater Rules
Some RestrictionsErosion Control
Construction projects disturbing 1 acre or more or within 500 feet of a lake or stream need a Soil Erosion and Sedimentation Control permit under Michigan Part 91 administered by Wayne County.
Dearborn Erosion Control Rules
Some RestrictionsFlood Zones
Parts of Dearborn along the Rouge River lie in FEMA Special Flood Hazard Areas. Construction in these zones requires a floodplain development permit and elevation above the base flood elevation.
Dearborn Flood Zone Rules
Heavy RestrictionsGrading & Drainage
Dearborn requires site grading to drain away from buildings and to not discharge onto neighboring properties. Major grading triggers Michigan Part 91 SESC permits and stormwater review.
Dearborn Grading and Drainage Rules
Some RestrictionsLooking for Wayne County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Dearborn city rules.
Environmental Rules in Wayne County →