August Dane County Code of Ordinances

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11.18 Dane County Code 2a-62 stream, existing flood plain developments, tion for the particular area as described in together with all pertinent information such Section 11.20(1)(t), to withstand the flood - as the nature of the proposal, legal descrip- velocities, forces and other factors associated tion of the property, fill limits and eleva- with the flood Protection elevation. The ap- Lions, building floor elevations and flood plicant shall submit a plan or document cer- proofing measures. tified by a registered professional engineer or architect that the flood proofing measures ' 2. Require the applicant to furnish any of are adequately designed to protect elevation the following additional information as is for the particular area. All flood proofing deemed necessary by the Department of shall provide anchorage to resist floatation Natural Resources for evaluation of the ef- and lateral movement. Other flood proofing fects of the proposal upon flood flows and to measures may include: determine the boundaries of the floodway and, where applicable, the regional flood (a) Installation of watertight doors, bulk- elevation. heads, and shutters. - A. A typical valley cross-section showing (b) Reinforcement of walls and floors to the channel of the stream, the flood plain ad- resist pressures. joining each side of the channel, cross-sec- tional area to be occupied by the proposed (c) Use of paints, membranes or mortars to development, and high water information. reduce seepage of water through walls. B. Plan (surface view) showing elevations The above Section 11.17(5), and (5)(a), or contours of the ground, pertinent struc- 11.17(5)(b) and (c) shall insure that struc- ture, fill or storage elevation; size, location tural walls are watertight, which shall be the and spatial arrangement of all proposed and minimum standard for certification pursuant existing structures on the site, location and to Section 11.17(5)above. elevations of streets, water supply, sanitary facilities, soil types and other pertinent in- (d) Addition of mass or weight to struc- formation. tures to prevent floatation. C. Profile showing the slope of the bottom C. Placement of essential utilities above the of the channel or flow line of the stream. flood protection elevation. D. Specifications for building construction (f) Pumping facilities and/or subsurface p g drainage systems for buildings to relieve ex- and materials, flood proofing, filling, dredg- ternal foundation wall and basement floor ing,channel improvement, storage of materi- pressures and to lower water levels in struc- als, water supply and sanitary facilities. tures. -I - 3. Transmit one copy of the information (g) Construction of water supply and waste described in subsections (a) and (b) to the treatment systems to prevent the entrance of Department of Natural Resources along flood water. with a written request to have the agency . provide technical assistance or establish (h) Construction to resist rupture or col- floodway boundaries and, where applicable, lapse caused by water pressure or floating provide regional flood elevation. Where the debris. provisions of Section 11.12(9)(e) of this ordi- nance apply, the applicant shall provide all (i) Cutoff valves on sewer lines or the required information and computations. elimination of gravity flow basement drains. (5) Flood Proofing. Flood proofing mea- Section 11.18 Amendments. sures such as the following shall be designed consistent with the flood protection eleva- (1) General. The County Board of the County of Dane, Wisconsin, may from time Supp.No.4,4-84 i