Environmental Rules in Oshkosh, WI (2026)
1 verified environmental rules for Oshkosh, Wisconsin, sourced directly from the municipal code and official government pages.
Verified from official government sources
Flood Zones
The City of Oshkosh administers floodplain and shoreland zoning within its corporate limits through Chapter 30 of the Municipal Code, using overlay zoning districts including the Floodplain Overlay (FP-O), Shoreland Overlay (SL-O), Lakefront Residential Overlay (LR-O), and Riverfront Overlay (RF-O). The ordinance is adopted under Wis. Stat. Sec. 87.30 and conforms to Wisconsin Administrative Code Chapter NR 116, plus 44 CFR Parts 59-72 for participation in the National Flood Insurance Program. The principal flood sources in Oshkosh are Lake Winnebago and the Fox River. Effective Flood Insurance Rate Maps and the Flood Insurance Study for Winnebago County are published by FEMA and available through the FEMA Map Service Center (msc.fema.gov) and the Winnebago County Adopted Floodplain Viewer.
Flood Zone Regulations (Oshkosh, WI)
Heavy RestrictionsWis. Stat. § 87.30(2)(a)
Every structure, building, fill, or development placed or maintained within any floodplain in violation of a zoning ordinance adopted under this section, or s. 59.69, 61.35 or 62.23 is a public nuisance and the creation thereof may be enjoined and maintenance thereof may be abated by action at suit of any municipality, the state or any citizen thereof. Any person who places or maintains any str...
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County ordinances apply to unincorporated areas and may supplement Oshkosh city rules.
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