Mississippi River Corridor Critical Area (MRCCA) — Minn. Stat. § 116G.15 (MN)
Tracked preemption from the Minnesota overlay bundle.
Overview
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Effective
1979-12-13
Sunset
—
Authority
state
Scope
state:MN
Other Minnesota preemptions
Sustainable Forest Incentive Act (SFIA) — Minn. Stat. Ch. 290CMinnesota Wetland Conservation Act — Minn. Stat. § 103G.221 et seq.Minnesota Public Waters Inventory — Minn. Stat. § 103G.005Minnesota Shoreland Management — Minn. Stat. § 103F.201 et seq.Minneapolis–Saint Paul International Airport (MSP) Noise / DNL 65–70+ ContoursMetropolitan Agricultural Preserves — Minn. Stat. Ch. 473HBoundary Waters Canoe Area Wilderness — Mining Protection Area BufferMetropolitan Land Planning Act — MUSA & Regional Comp-Plan Conformity (Minn. Stat. §§ 473.851–473.871)
Trigger predicate
When this evaluates true for a parcel, the law's preempted fields take precedence over base zoning.
parcel.is_in_mississippi_river_critical_area == TruePreempted fields
3 fields on the base district schema are rewritten when the trigger fires.
| Field | Op | Value | Note |
|---|---|---|---|
review_type | require | mrcca_ordinance_conformity_minn_r_6106 | Cities and counties along the 72-mile Mississippi River corridor through the Twin Cities metro (Dayton/Ramsey to Hastings) must adopt MRCCA ordinances conforming to Minn. R. 6106.0010–6106.0180. DNR approves; Met Council reviews comp-plan chapter. |
base_districts[*].max_structure_height_ft | cap_at | mrcca_district_specific_height_cap | Six MRCCA districts (CA-ROS, CA-RN, CA-RTC, CA-UM, CA-UC, CA-SR) carry district-specific height, setback, bluff-impact-zone, and vegetation-protection standards. Bluff-impact zones (within 20 ft of bluff line + slopes >18%) generally prohibit new structures. |
base_districts[*].min_setback_from_bluff_or_water_ft | floor_at | mrcca_district_specific_setback |
Citation
Authority source
Mississippi River Critical Area Act, Minn. Stat. § 116G.15; rules Minn. R. Ch. 6106 (2017 update); coordinated with federal Mississippi National River and Recreation Area (MNRRA, 16 U.S.C. § 460zz)
Research notes
Overlay applies to ~54,000 acres along the Mississippi in the metro. Originally designated under EO 79-19 (Gov. Quie, 1976); statutorily codified at § 116G.15. The 2017 MRCCA rules supersede the legacy executive-order tiers. Federal conflict check enabled because the corridor is also the MNRRA — a National Park Service unit administered cooperatively with the state.