Agenda - Environmental Policy Board - 09/21/2015

Home

out in subsection (e)(2) of this section. In considering permit applications, due consideration shall be given to needs of an industry whose business requires that it be located in floodplain areas. (4) Fill shall be properly compacted and the slopes shall be properly protected by the use of rip -rap, vegetative cover or other acceptable method. The Federal Emergency Management Agency (FEMA) has established criteria for removing the special flood hazard area designation for certain structures properly elevated on fill above the 100 -year flood elevation, FEMA's requirements incorporate specific fill compaction and side slope protection standards for multistructure or multilot developments. These standards should be investigated prior to the initiation of site preparation if a change of special flood hazard area designation will be requested. Floodplain developments shall not adversely affect the hydraulic capacity of the channel and adjoining floodplain of any tributary watercourse or drainage system where a floodway or other encroachment limit has not been specified on the official zoning map. Standards for travel trailers and travel vehicles are contained in section 117-187(c). All manufactured homes must be securely anchored to an adequately anchored foundation system that resists flotation, collapse and lateral movement. Methods of anchoring may include, but are not to be limited to, use of over -the -top or frame ties to ground anchors. This requirement is in addition to applicable state or local anchoring requirements for resisting wind forces. (5) (6) (7) (Code 1978, § 9.22.05; Ord. No. 79-13, 10-29-1979; Ord. No. 86-2, 8-25-1986; Ord. No. 92-07, 7-13-1992) Sec. 117-185. - General floodplain district. (a) Permissible uses. (1) The uses listed in section 117-183(a) shall be permitted uses. (2) All other uses shall be subject to the floodway/flood fringe evaluation criteria pursuant to subsection (b) of this section. Section 117-183 shall apply if the proposed use is in the floodway district and section 117-184 shall apply if the proposed use is in the flood fringe district. (b) Procedures for floodway and flood fringe determinations within the general floodplain district. (1) Upon receipt of an application for a conditional use permit for a use within the general floodplain district, the applicant shall be required to furnish such of the following information as is deemed necessary by the zoning administrator for the determination of the regulatory flood protection elevation and whether the proposed use is within the floodway or flood fringe district. a. A typical valley cross section showing the channel of the stream, elevation of land areas adjoining each side of the channel, cross sectional areas to be occupied by the proposed development, and high water information. b. Plan (surface view) showing elevations or contours of the ground; pertinent structure, fill, or storage elevations; size, location, and spatial arrangement of all proposed and existing structures on the site; location and elevations of streets; photographs showing existing land uses and vegetation upstream and downstream; and soil type. c. 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 for submitting one copy of the information required in subsection (b)(1) of this section 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 Minn. Rules pts. 6120.5000-6120.6200 shall be followed in this expert evaluation. The designated engineer or expert is strongly encouraged to discuss the proposed technical Page 7