Woodbury, MN Environmental Rules: Flood Zones (2026)

chapters 103F and 462, adopted so the city keeps its eligibility in the National Flood Insurance Program under 44 CFR Parts 59-78 (Secs. 25-1, 25-2(c)). The chapter applies, per Sec. 25-4, to all land the official zoning map shows within the floodway or flood fringe district, mapped on the ten FEMA Flood Insurance Rate Map panels for Washington County adopted in Sec. 25-5, plus two Letters of Map Revision from 2015 and 2016. Sec. 25-13 splits the mapped area into two districts: the floodway, covering land below the ordinary high water level, and the flood fringe, covering land above that level but below the one percent annual chance (100-year) flood elevation.

Sec. 25-14, Compliance, is the chapter's operative restriction: no new structure or land use may be constructed, located, extended, converted, or structurally altered without full compliance with the chapter, and within both the floodway and flood fringe districts, any use not specifically listed as a permitted or conditional use in articles IV and V is prohibited outright. The floodway allows only low-damage-potential uses like farming, parks, and lawns as permitted uses (Sec. 25-15), with extraction, marinas, and fill permitted only as conditional uses under strict no-rise standards (Secs.

25-17, 25-18). The flood fringe allows the underlying zoning district's uses, but only if they meet the elevation and floodproofing standards in Secs. 25-20 and 25-23. As-built elevations for elevated or floodproofed structures must be certified by ground survey and, for floodproofing, by a registered engineer or architect.