Eagan, MN Environmental Rules: Flood Zones (2026)

Eagan's floodplain regulations sit in City Code § 11.66, adopted to keep the city eligible for the National Flood Insurance Program under Minn. Stats. chs. 103F and 462. The floodplain splits into the Floodway District (FW) and Flood Fringe District (FF), mapped on the Flood Insurance Rate Map for Dakota County (Panels 27037C0080E, 27037C0081E and 27037C0090E, effective December 2, 2011). Under Subd. 3.F, no structure or land can be located, enlarged, converted, repaired, or structurally altered in the floodplain without full compliance, and any use not expressly listed as permitted or conditional is prohibited.

Subd. 3.I requires a separate permit from the protective inspection department before any building, structure, fence, on-site septic system, dam, fill, excavation, or material storage is placed in the floodplain; the chief building official reviews building applications while the city planner reviews subdivisions and developments. In the floodway, new principal buildings (including residential structures), new residential subdivisions, recreational vehicle parks, campgrounds, and manufactured homes are flatly prohibited under Subd. 5.E; only low-damage uses like farming, parking, and unenclosed recreation are allowed by right, with accessory structures, fill storage, and flood-control works allowed only by conditional use permit.

In the flood fringe, any use permitted in the underlying zoning district may proceed, but structures must meet elevation standards. The city planner must notify the DNR area hydrologist at least ten days before granting a conditional use permit or variance and 20 days before a subdivision approval. Violations run daily under the compliance clause.