Environmental Rules in Oneida County, WI (2026)
4 rules for unincorporated Oneida County, Wisconsin.
Verified from official government sources
Stormwater Management
New Oneida County land divisions crossing a watercourse must include a stormwater easement or drainage right-of-way under General Code § 15.22(2), sized to carry the flow and, where possible, kept as an open channel with natural or landscaped banks. The rule reaches unincorporated land only; platting inside Rhinelander or a village follows municipal standards.
Oneida County Stormwater Easements for New Subdivisions
Some RestrictionsOneida County General Code § 15.22(2), Wisconsin
Stormwater Easement and Drainage Right-of-Way. Where a subdivision is traversed by a watercourse, drainageway, channel, or stream, there shall be provided a stormwater easement or drainage right-of-way conforming substantially to the lines of such watercourse and of such width or construction or both as is adequate for drainage purposes. Wherever possible, it is desirable that the drainage be m...
Erosion Control
Every new Oneida County land division must be designed to minimize soil erosion and manage surface water drainage under General Code § 15.22(1), and the Planning and Zoning Committee can demand engineering studies and impose preventive design requirements before approving a plat. The rule reaches unincorporated towns only, not Rhinelander or a village.
Oneida County Erosion Control for New Land Divisions
Some RestrictionsOneida County General Code § 15.22(1), Wisconsin
Land divisions shall be designed so as to minimize soil erosion and to provide reasonable management of surface water drainage. The Committee may require engineering studies of erosion potentials and may impose preventive design requirements. The Committee may require documentation of surface water drainage patterns and may impose design requirements to assure that flows are transported and dis...
Flood Zones
Oneida County requires a zoning permit before any new development, repair, modification, addition or use change inside its mapped floodplain, under the Oneida County Floodplain Zoning Ordinance (Chapter 20, Ord. No. 20-2013). Because Wis. Stat. § 59.69 keeps county zoning out of the City of Rhinelander and any village, the requirement runs in the unincorporated towns.
Oneida County, WI Floodplain Development Permit Rule
Some RestrictionsOneida County General Code §§ 20.1.4, 20.7.1(2) and 20.9.1, Wisconsin
This ordinance shall be known as the Oneida County Floodplain Zoning Ordinance for Oneida County, Wisconsin. ... A zoning permit shall be obtained before any new development repair, modification or addition to any existing structure; or change in the use of a building or structure, including sewer and water facilities, may be initiated. ... Any violation of the provisions of this ordinance by a...
Flood Elevation Requirements
Oneida County requires two feet of freeboard above the regional flood elevation for new construction in its mapped floodplain. Section 20.10.1 defines 'flood protection elevation' as that two-foot margin, and § 20.4.3(1)(a) makes the lowest floor of new Floodfringe District residential structures meet it before a permit issues.
Oneida County, WI Flood Elevation Freeboard Rule
Some RestrictionsOneida County General Code §§ 20.10.1(33), 20.10.1(36) and 20.4.3(1)(a), Wisconsin
FLOOD PROTECTION ELEVATION — An elevation of two feet of freeboard above the water surface profile elevation designated for the regional flood. (Also see: FREEBOARD.) ... FREEBOARD — A safety factor expressed in terms of a specified number of feet above a calculated flood level. ... The elevation of the lowest floor, shall be at or above the flood protection elevation on fill unless the require...
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