08-16-2004 Planning Packet - Laserfiche WebLink

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Sec. 78.1 12J Permitted Utc« (a) The uses listed m Section 78-1 1 14 of this Ordinance shall he permitred uses. (b) All other uses shall be subject to the floodway llood mnge evaluation criteria pursuant to Section ■'8*1 124 below. Division 4 shall apply if the proposed use is in the FIov-*d\v ay District and Division 5 shall apply if the proposed use is in the Flood Fnr.ge District Scr. 78-1124 Procedures for Floodssay and Flood Fringe Delvnninalioiis ssiihln the General Flood Plain District. (a) Upon receipt of an applicatum for a permit or other approval within the General Flood Plain District, the applicant shall be required to fumsh such of the follow ing information as is deemed necessary by the Planning Director for the determination of the regulatory flood protection elevation and wlKther the proposed use is w ithin the Floodway or Flood Fringe District. 1. A typical valley cross-section(s) show mg the channel of the stream, elevation of land areas adjoining each side of the channel, cross-sectiona! areas to be occupied by the pioposed development, and high water information. 2 Plan (surface view) show mg elevations or contours of the ground, pertinent structure, fill, or storage elev ations, the st/e. location, and spatial aaangement of all proposed and existing structures on the sue. and the location and elevations of streets 3. Photographs showing existing land uses, vegetation upstream and downstream, and soil types. 4 Profile showing the slope of the bonom of the channel or flow line of the stream for at least 500 feet in eiOier direction from the proposed development (b) llie applicant shall be responsible to submit one copy of the above information to a designated engineer or other expert person or agency for technical assistance m determining whether the proposed use is m the Floodway or Flood Fringe District and to determine the regulatory flood protection elcvaiion. Procedures consistent with Minnesota Regulations 19S3. Parts 6120.5000 - 6120 6200 and 44 Code of Federal Regulations Part 65 shall be followed in this expert ev aluation The designated engineer or expert is strongly encouraged to discuss the proposed technical evaluation methodology with the respective Department of Natural Resources* Area Hydrologist pnor to commencing the analysis The designated cnginccx or expert shall 1 . Estimate the peak discharge of the regional flood 2. Calculate the vv atcr surface profile of the regional flood based upon a hydraulic analysis of the stream channel and overbank areas. 3. Compute the floodway r.rccssary to convey or store the regional flood without increasing flood stages more th.an 0 5 foot. A lesser stage increase than 0.5' shall be required if, as a result of the additional stage increase, increased flood damages i Otsi'ict-l Mfp. t'ICWyi rrntHM -13-