Environmental Rules in Anoka County, MN (2026)
4 rules for unincorporated Anoka County, Minnesota.
Verified from official government sources
Stormwater Management
In unincorporated Anoka County land within 1,000 feet of a lake, pond or flowage, or 300 feet of a river or stream, Ordinance No. 2022-1 requires development to protect natural drainage first and use engineered stormwater controls only when the site can't handle runoff on its own.
Stormwater Rules in Anoka County Shorelands
Some RestrictionsAnoka County Ordinance No. 2022-1 (Shoreland Management), § 8.4.1
8.4. Stormwater Management. 8.4.1. General Standards: A. When possible, existing natural drainageways, and vegetated soil surfaces must be used to convey, store, filter, and retain stormwater runoff before discharge to public waters. B. Development must be planned and conducted in a manner that will minimize the extent of disturbed areas, runoff velocities, erosion potential, and reduce and del...
Erosion Control
Anoka County requires a grading and filling permit for any unincorporated shoreland work moving more than 10 cubic yards on a steep slope or impact zone, or 50 cubic yards elsewhere, and every land alteration must meet numeric erosion and sediment controls, including a 30 percent slope cap.
Erosion Control Rules in Anoka County Shoreland
Some RestrictionsAnoka County Ordinance #2022-1, Sec. 8.3
8.3.2. Permit Requirements. ... B. For all other work, including driveways not part of another permit, a grading and filling permit is required for: (1) the movement of more than 10 cubic yards of material on steep slopes or within shore or bluff impact zones; and (2) the movement of more than 50 cubic yards of material outside of steep slopes and shore and bluff impact zones. 8.3.3. Grading, F...
Flood Zones
Anoka County has no floodplain ordinance of its own. The County Board repealed its 1980s/1990s Floodplain Management ordinances in 2018 (Ordinance #2018-6) because every city and township in the county had already adopted floodplain ordinances covering the same ground, including the unincorporated area.
Anoka County Repealed Its Own Floodplain Ordinance
Few RestrictionsAnoka County Ordinance No. 2018-6
ORDINANCE #2018-6, REPEALING ORDINANCE NOS. 80-3, 90-2, 80-2, 85-1, 92-1, 80-5 AND 91-2 OF THE COUNTY OF ANOKA RELATING TO FLOOD PLAIN, SHORELAND AND SCENIC RIVER MANAGEMENT Purpose: It is the purpose of this Ordinance to repeal Ordinance Nos. 80-3, 90-2 relating to Floodplain Management, 80-2, 85-1, 92-1 relating to Shoreland Management, 80-5 relating to Scenic Rivers Management and 91-2 rela...
Flood Elevation Requirements
Where floodplain regulatory elevations don't already control, Anoka County's Shoreland Management Ordinance requires the lowest floor of a structure, including any basement, to sit at least three feet above the highest known water level or the ordinary high water level, and utilities and flood-proofing must match that elevation.
Flood Elevation Rules in Anoka County Shoreland
Some RestrictionsAnoka County Ordinance #2022-1, Sec. 6.4.2
A. Determining elevations. Structures must be placed at an elevation consistent with the applicable floodplain regulatory elevations. Where these controls do not exist, the elevation to which the lowest floor, including basement, is placed or flood-proofed must be determined as follows: (1) For lakes, by placing the lowest floor at a level at least three feet above the highest known water level...
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