§ 42-32. Drainage regulations.

(a)

Adequate drainage required. In no case may a principal building be located in an area zoned conservancy or field delineated as wetland. No principal building shall be erected, or relocated, and no below-grade structures shall be expanded on newly created or existing lots that are not in compliance with the site drainage standards contained in the county stormwater management and erosion control ordinance, including all counts technical procedures and forms used to enforce these standards (chapter 14-342(c)). The lowest floor, including any basement floor, shall not be less than one foot above the highest seasonal groundwater level. For the purposes of this section, the highest groundwater level is defined as the upper limit of the zone of soil saturation caused be underlying groundwater at its highest level. Where groundwater limitations exist, subdivision plats and certified survey maps shall state the lowest allowed floor elevation for any proposed principal structure as needed to ensure compliance with the above-noted site drainage standards. All basement elevations must comply with the subdivision plat or certified survey map master grading plan or with the master grading plan referenced on the subdivision plat or certified survey map. The town building inspector and/or town engineer may request, at the owner's expense, the advice and assistance of a licensed professional engineer specializing in soils engineering or other qualified person in fulfilling their duties pursuant to this provision. Building, drainage, grading or other similar plans may be required to determine compliance with this section. The town accepts no liability for construction activities involving groundwater limitations and property owners are solely responsible for protecting their interests in this regard.

(b)

Obstruction to drainage prohibited. The damming, filling, relocating or otherwise interfering with the natural flow of surface water along any surface water drainage channel or natural watercourse shall not be permitted except with approval of the town plan commission and the county park and planning commission and the department of natural resources pursuant to Wis. Stats. ch. 30.

(c)

Building restricted adjacent to drainage channels or watercourses. No building other than a bridge, dam or revetment subject to the aforesaid approval, shall be erected, structurally altered or relocated within 35 feet of the average annual high water line of such natural watercourse nor so that the lowest floor of said building is less than two feet above the average annual high water line or 100-year flood elevation.

(Ord. of 10-24-2017, § 13-2-6)

Editor's note

Former § 13-2-6(a) was repealed and recreated by Ord. No. 2016-1201-1.