August Dane County Code of Ordinances

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• r-, i 11.13 Dane County Code 2a-56 (e) Extraction of sand, gravel and/or other 1. Adequate flood proofing measures are materials. provided to the flood protection elevation; r- _ (f) Marinas, boat rentals, docks, piers, 2. Construction shall not cause any in- wharves. crease of 0.1 foot or greater in the height of the regional flood, except that reasonable in- *(g) Railroads, streets, bridges, pipelines creases up to 0.1 foot may be approved if the (--, and other water related uses, such as culverts amendment procedures and all conditions of and river crossings of transmission lines and Section 11.18(2)are met;.and any uses subject to regulations pursuant to - Chapter 30,subject Statutes. 3. The county amends its water surface profiles, flood plain zoning maps and flood (3) Standard for Developments in Flood- plain zoning ordinances to reflect any way Areas. changes resulting from'such construction. (a) All of the provisions of Section 11.12(9) (e) Fills or deposition of materials may be . shall apply hereto. permitted provided that: (b) Structures which are accessory to per- 1. The provisions of Section 11.12(9)(a) are mitred open space uses may be permitted met; providing the structures: 2. Fill or deposition of materials does not 1. Are not designed for human habitation; encroach on the channel area between the ordinary high water mark on each bank of 2. Have a low flood damage potential; the stream unless a permit has been granted - by the Department of Natural Resources 3. Are to be constructed and placed on the pursuant to Chapter 30, Wis. Stats., and a building site so as to offer minimum obstruc- permit pursuant to Section 404 of the Fed- , tion to the flow of flood waters. Whenever eral Water Pollution Control Act, Amend- possible, structures will be constructed with ments of 1972, 33 U.S.C. 1334 has been the longitudinal axis parallel to the direction issued, if applicable, and the other require- of flow of flood waters, and will be placed ments of this section are met; and with their longitudinal axis approximately --, on the same line as those of adjoining struc- 3. The fill or other materials will be pro- ! tures. - tected against erosion by rip-rap, vegetative 4. Are firmly anchored to prevent them cover, sheet piling and/or bulkheading suffi- from floating away and restricting bridge dent to prevent erosion and leachate. openings or other restricted sections. of the _1 stream or river; and (4) Prohibited Uses: The following uses shall be prohibited in the floodway district: 5. Have all service facilities, such as electri- cal and heating equipment at or above the (a) The storage of any materials that are flood protection elevation for the particular buoyant, flammable; explosive, or injurious area. to human, animal, plant, fish or other aquatic life. (c) Uses permitted by the Department of !_ Natural Resources pursuant to Chapters 30 (b) Any uses which are not in harmony and 31. Wis. Stats., provided that the neces- with, or which may he detrimental to, the sary permits are obtained and amendments uses permitted in the adjoining districts. . approved by the County. to the official flood- way lines, water surface profiles, flood plain (c) Any on-site sewage disposal system, zoning maps and flood plain zoning ordi- whether public or private, except portable nance. latrines that are removed during flooding, or . systems associated with public recreational ,- (d) Public utilities, streets and bridges pro- areas that meet the applicable provisions of vided that: H-63, Wisconsin Administrative Code. - Supp.No.4,4-84