Ordinance 842 - Laserfiche WebLink

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b. As an alternative to elevation on fill, owners of accessory structures in the flood fringe that constitute a minimal investment and that do not exceed 500 square feet in area may flood proof such structures according to the following standards: (1) Owners shall not intend, design, nor construct accessory structures for human habitation. (2) Accessory structures must be elevated on fill or structurally dry flood proofed according to the FP -1 or FP -2 flood proofing classifications in the Minnesota State Building Code. As an alternative, an owner may flood proof an accessory structure to the FP -3 or FP -4 flood proofing classification in the Minnesota State Building Code. For a detached garage, the owner must use the detached garage solely for parking of vehicles and limited storage. All flood proofed accessory structures must meet the following additional standards: 8 April 29, 2010 (a) Accessory structures must be adequately anchored to prevent flotation, collapse or lateral movement of the structure and shall be designed and constructed to equalize hydrostatic flood forces on exterior walls; (b) All mechanical and utility equipment in the accessory structure must be elevated to or above the regulatory flood protection elevation or properly flood proofed; and (c) To allow for the equalization of hydrostatic pressure, there must be a minimum of two "automatic" openings in the outside walls of the accessory structure having a total net area of not less than one square inch for every square foot of enclosed area subject to flooding. There must be openings on at least two sides of the structure and the bottom of all openings must be no higher than one foot above the lowest adjacent grade to the structure. Using human intervention to open a garage door before flooding will not satisfy this requirement for automatic openings. c. The cumulative placement of fill on a parcel where at any one time is in excess of one thousand (1,000) cubic yards shall be allowed only as a conditional use, unless said fill is specifically intended to elevate a structure to meet the requirements of Section 1301.05, Subd. 2 of this Chapter. d. Property owners and users shall store or park any materials or equipment on fill to an elevation at or above the regulatory flood protection elevation. e. The provisions of Section 1301.05, Subd. 5 of this Chapter shall apply. Subd. 3. Conditional Uses: The City shall only allow structures that are not elevated on fill or flood proofed according to Sections 1301.05, Subd. 2a and 2b of this Chapter and or any use of land that does not meet the standards in Sections 1301.05, Subd. 2c and 2d as a conditional use. An application for a conditional use permit shall be subject to the standards and criteria and evaluation procedures specified in Sections 1301.05, Subd. 4 and Subd. 5 and 1 in 1301.10, Subd. 4 of this Chapter, those standards and procedures set forth in Title 1100 of the City Code and elsewhere in the City Code. Subd. 4. Standards for Flood Fringe Conditional Uses: a. An owner may use alternative elevation methods other than the use of fill to elevate a structure's lowest floor above the regulatory flood protection elevation. These alternative methods may include the use of stilts, pilings, parallel walls, etc., or above grade, enclosed areas such as crawl spaces or tuck under garages. The City shall consider the base or floor of an enclosed area above -grade and not a structure's basement or lowest floor if: 1) the enclosed area is above grade on at least one side of the structure; 2) it is designed and constructed to internally flood