Minnesota Floodplain Management — Minn. Stat. § 103F.111 et seq. (MN)
Tracked preemption from the Minnesota overlay bundle.
Overview
← All state preemptionsMinnesota overlay roll-upMinnesota zoning wikiMinnesota building codesFederal overlaysGlossaryFederal-conflict: Yes
Effective
1969-05-24
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. 473HMississippi River Corridor Critical Area (MRCCA) — Minn. Stat. § 116G.15Boundary Waters Canoe Area Wilderness — Mining Protection Area Buffer
Trigger predicate
When this evaluates true for a parcel, the law's preempted fields take precedence over base zoning.
parcel.in_designated_floodplain == TruePreempted fields
3 fields on the base district schema are rewritten when the trigger fires.
| Field | Op | Value | Note |
|---|---|---|---|
review_type | require | dnr_approved_floodplain_ordinance | All cities and counties containing FEMA-mapped Special Flood Hazard Areas must adopt and enforce a DNR-approved floodplain ordinance under Minn. R. Ch. 6120.5000–6120.6200. DNR provides the model ordinance; failure to comply jeopardizes NFIP participation. |
base_districts[*].min_finished_floor_elevation_ft | floor_at | regulatory_flood_protection_elevation_BFE_plus_one_foot | MN regulatory flood protection elevation is BFE + 1 ft freeboard for residential structures; nonresidential may use dry floodproofing to RFPE. |
base_districts[*].allowed_uses | restrict | no_critical_facilities_in_floodway_no_new_residential_in_floodway |
Citation
Authority source
Minn. Stat. §§ 103F.101–103F.155 (Floodplain Management); Minn. R. Ch. 6120.5000–6120.6200; DNR Floodplain Management Program
Research notes
Coordinated with FEMA National Flood Insurance Program (NFIP). DNR administers state-level review/approval of local floodplain ordinances; FEMA maps SFHA. Per-parcel geographic predicate keyed to FIRM panels. Federal conflict check enabled for NFIP coordination.