5 county-level rules, plus city-specific rules for 2 cities in Hennepin County, Minnesota.
Verified from official government sources
Hennepin County requires stormwater management practices on construction and redevelopment sites to protect lakes, rivers, and the Mississippi River watershed under county and watershed district rules.
Hennepin County and its watershed districts require erosion and sediment control measures on grading projects to prevent runoff into lakes, creeks, and the Mississippi River.
Cities in Hennepin County participate in the FEMA National Flood Insurance Program (NFIP) under Minn. Stat. §§103F.101-103F.165 (Floodplain Management Act). Each city with mapped floodplain along the Mississippi River, Minnesota River, or smaller waterways must adopt a DNR-approved floodplain ordinance regulating the floodway, flood fringe, and general floodplain (A Zone). State law and DNR rules require residential lowest floors at least 1 foot above the regulatory flood protection elevation (BFE plus 1 ft freeboard).
Hennepin County limits unnecessary idling of county fleet vehicles and encourages voluntary idling reduction across cities to cut emissions and protect air quality near schools and hospitals.
The 2021 Hennepin County Climate Action Plan sets a goal of net-zero greenhouse gas emissions by 2050 and guides county operations, transportation, energy, and waste programs.
2 cities in Hennepin County have their own environmental rules rules. Each link goes to that city's dedicated page with code citations.
See every category we cover for Hennepin County — parking, noise, fences, fires, animals, pools, and more.
Hennepin County Ordinance Hub →