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a. Upon receipt of an application for a conditional use permit for a use within <br />the General Floodplain District, the applicant shall be required to furnish <br />such of the following information as is deemed necessary by the Zoning <br />Administrator for the determination of the Regulatory Flood Protection <br />Elevation and whether the proposed use is within the Floodway or Flood <br />Fringe District. <br />(1) Atypical valley cross-section showing the channel of the stream, <br />elevation of land areas adjoining each side of the channel, cross- <br />sectional areas to be occupied by the proposed development, and <br />high water information. <br />(2) Plan (surface view) showing elevations or contours of the ground; <br />pertinent structure, fill, or storage elevations; size, location, and <br />spatial arrangement of all proposed and existing structures on the <br />site; location and elevations of streets; photographs showing <br />existing land uses and vegetation upstream and downstream; and <br />soil type. <br />(3) Profile showing the slope of the bottom of the channel or flow line <br />of the stream for at least 500 feet in either direction from the <br />proposed development. <br />b. The applicant shall be responsible to submit one copy of the above <br />information to a designated engineer or other expert person or agency for <br />technical assistance in determining whether the proposed use is in the <br />Floodway or Flood Fringe District and to determine the Regulatory Flood <br />Protection Elevation. Procedures consistent with Minnesota Regulations <br />1983, Parts 6120.5000-6120.6200 shall be followed in the expert <br />evaluation. The designated engineer or expert is strongly encouraged to <br />discuss the proposed technical evaluation methodology with the respective <br />Department of Natural Resources' Area Hydrologist prior to commencing <br />the analysis. The designated engineer or expert shall: <br />(1) Estimate the peak discharge of the regional flood. <br />(2) Calculate the water surface profile of the regional flood based upon <br />a hydraulic analysis of the stream channel and over bank areas. <br />(3) Compute the floodway necessary to convey or store the regional <br />flood without increasing flood stages more than 0.5 foot. A lesser <br />state increase than .5 feet shall be required if, as a result of the <br />additional stage increase, increased flood damages would result. <br />An equal degree of encroachment on both sides of the stream <br />within the reach shall be assumed in computing floodway <br />boundaries. <br />Little Canada Zoning Ordinance FP, Floodplain District <br />916-12 <br />