FINAL ORDINANCE NO. 08-023 - Laserfiche WebLink

Home Browse Search

Ordinance 03-02 Council: 1126110 (d) Documentation of soil types and soil limitations on the subject site. (e) Profile showing the slope of the bottom of the channel or flow line of the stream for at least 500 feet in either direction from the proposed development. (2) The 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 in determining whether the proposed use is in the Floodway or Flood Fringe District and to determine the regulatory flood protection elevation. Procedures consistent with Minnesota Regulations 1983, Parts 6120.5000 - 6120.6200 and 44 Code of Federal Regulations Part 65 shall be followed in this expert evaluation. The designated engineer or expert is strongly encouraged to discuss the proposed technical evaluation methodology with the respective Department of Natural Resources' Area Hydrologist and watershed district prior to commencing the analysis. The designated engineer or expert shall: (a) Estimate the peak discharge of the regional flood. (b) Calculate the water surface profile of the regional flood based upon a hydraulic analysis of the stream channel and overbank areas. (c) Compute the floodway necessary to convey or store the regional flood without increasing flood stages more than 0.5 foot. A lesser stage increase than .5' shall be required if, as a result of the additional stage increase, increased flood damages would result. An equal degree of encroachment on both sides of the stream within the reach shall be assumed in computing floodway boundaries. For the mapped lake and wetland basins within the City of Lake Ehno as shown on the Flood Insurance Rate Map Panels adopted in Section 152.02 (B) of this Ordinance, the floodway shall be that area of the floodplain below the Ordinary High Water Level, as defined in Minnesota Statute, Section 103G.0005, subd. 14, provided that: 1) compensating flood water storage is provided below the 100-year flood elevation; or 2) a determination is made that any resultant increase in stage to the 100-year flood level due to loss of flood water storage below the 100-year flood level meets the criteria for acceptable stage increase spelled out in this paragraph. (3) The Zoning Administrator shall present the technical evaluation and findings of the designated engineer or expert to the City Council. The City Council must formally accept the technical evaluation and the recommended Floodway and/or Flood Fringe District boundary or deny the permit application. The City Council, prior to official action, may submit the application and all supporting data and analyses to the Federal Emergency Management Agency, the Department of Natural Resources or the Planning Commission for review and comment. Once the Floodway and Flood Fringe District Boundaries have been determined, the City Council shall refer the matter back to the Zoning Administrator who shall process the permit application consistent with the applicable provisions of Section 152.04 and 152.05 of this Ordinance. § 152.07 SUBDIVISIONS 13