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17-9
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<br /> (6) Extraction of sand, gravel or other materials (d) The structures have all service facilities such-as -
<br /> according to s. 17.33(3). electrical and heating equipment at or above the
<br /> (7) Functionally water-dependent uses such as flood protection elevation for the particular area.
<br /> docks, piers or wharves, including those used as (2) Public utilities, streets and bridges may be
<br /> part of a marina, and other water related uses such allowed by permit, provided that:
<br /> as dams, flowage areas, culverts, navigational aids (a) Adequate floodproofing measures are provided
<br /> and river crossings of transmission lines and to the flood protection elevation;
<br /> pipelines, according to chs. 30 and 31, Wis.Stats. (b) Construction does not cause an increase in the
<br /> (8) Public utilities, streets and bridges, according regional flood height according to s. 17.25, except
<br /> to s. 17.335(2). where the water surface profiles, floodplain zoning
<br /> maps and floodplain zoning ordinance are
<br /> 17.33 STANDARDS FOR DEVELOPMENTS IN amended, as needed to reflect any changes
<br /> FLOODWAY AREAS. (1) Any development in resulting from such construction.
<br /> floodway areas shall meet all of the provisions of, (3) Fills or deposition of materials may be allowed
<br /> subchap. II and have a low flood damage potential. by permit, provided that:
<br /> (2) Applicants shall provide the following data for (a) The requirements of s. 17.25 are met;
<br /> the zoning administrator,to determine the effects of (b) The fill or deposition of materials does not
<br /> the proposal according to s. 17.25: encroach on the channel area between the
<br /> (a) A cross-section elevation view of the proposal, ordinary high water mark on each bank of the
<br /> perpendicular to the watercourse, indicating stream unless a permit has been granted by the
<br /> whether the proposed development will obstruct department of natural resources pursuant to ch. 30,
<br /> flow; or Stats., and a permit pursuant to s. 404 of the
<br /> (b) An analysis calculating the effects of this Federal Water Pollution Control Act, Amendments
<br /> proposal on regional flood height. of 1972, 33 U.S.C. 1334 has been issued, if
<br /> (3) The zoning administrator shall deny the permit applicable, and the other requirements of this
<br /> application where it is determined the project will section are met;
<br /> increase flood elevations upstream or downstream (c) The fill or other materials will be protected
<br /> 0.01 foot or more, based on the data submitted for against erosion by riprap, vegetative cover, sheet
<br /> sub. (2), above. piling or bulkheading sufficient to prevent erosion;
<br /> and provided that
<br /> 17.335 STRUCTURES. (1) In, or over, floodway (d) Such fills are not associated with private or
<br /> areas only structures which are accessory to public solid waste disposal.
<br /> permanent open space uses. Those classified as
<br /> historic structures, or are functionally dependent 17.34 PROHIBITED USES. (intro.) All uses not
<br /> on a waterfront location, may be allowed by listed as permitted uses in s. 17.32 are prohibited
<br /> permit, providing the structures meet all of the within the floodway district and in the floodway
<br /> following criteria:" portion of the general floodplain district, including
<br /> (a) The structures are not designed for human the following uses which are always prohibited in
<br /> habitation or associated with high flood damage the floodway:
<br /> potential; (1) Structures in, on or over floodway areas which
<br /> (b) The structures are constructed and placed on are designed for human habitation, associated with
<br /> the building site so as to cause an increase less high flood damage potential, or not associated with
<br /> than 0.01 foot in flood height and offer minimum permanent open-space uses;
<br /> obstruction to the flow of floodwaters. Structures (2) The storage of any materials that are capable of
<br /> shall be constructed with the longitudinal axis floating, flammable, explosive, or injurious to
<br /> parallel to the direction of flow of floodwaters and ' property, water quality, or human, animal, plant,
<br /> approximately on the same line as those of fish or other aquatic life;
<br /> adjoining structures; (3) Any uses which are not in harmony with, or
<br /> (c) The structures are firmly anchored to prevent which may be detrimental to, the uses permitted in
<br /> them from floating away and restricting bridge the adjoining districts;
<br /> openings or other restricted sections of the stream (4) Any private or public sewage systems, except
<br /> or river; and portable latrines that are removed prior to flooding,
<br /> 1' Annotation: Rev. federal rule Oct. 1990.
<br /> rev. 043095
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