Oneida County, WI Environmental Rules: Stormwater Management (2026)

22(2), Stormwater Easement and Drainage Right-of-Way, sits in Article III of the county's Subdivision Control Ordinance and applies wherever a proposed subdivision is traversed by a watercourse, drainageway, channel or stream. The subdivider must provide a stormwater easement or drainage right-of-way that conforms substantially to the lines of that watercourse and is wide enough, or otherwise built, to handle drainage; the code adds that an open channel with natural or landscaped banks and adequate capacity for the maximum potential flow is the preferred design wherever possible.

22(1), which lets the Planning and Zoning Committee demand engineering studies of erosion potential and impose design requirements so drainage does not cause undue erosion, siltation or runoff onto adjoining land and roads. 09, the whole chapter's jurisdiction applies to all lands within Oneida County except within the corporate limits of any incorporated area, so this stormwater-easement requirement governs new land divisions in the county's towns, not plats inside the City of Rhinelander or any village, which run under their own subdivision ordinances. Chapter 15 was adopted by the Board of Supervisors on February 16, 2010 by Resolution No. 04(4)(a)1.