2015-11-02 P & Z Packet - Laserfiche WebLink

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(b) Nonresidential basements may be allowed below the regulatory flood protection elevation;provided,that the basement is structurally dry flood-proofed in accordance with this chapter. (3) All areas of nonresidential structures,including basements,to be placed below the regulatory flood protection elevation shall be flood-proofed in accordance with the structurally dry flood- proofing classifications in the Minnesota Building Code. Structurally dry flood-proofing must meet the FP-I or FP-2 flood-proofing classification in the Minnesota Building Code and this shall require making the structure watertight with the walls substantially impermeable to the passage of water and with structural components having the capability of buoyancy. Structures flood-proofed to the FP-3 or FP-4 classification shall not be permitted. (4) When at any one time more than 1,000 cubic yards of fill or other similar material is located on a parcel for activities such as on-site storage,landscaping,sand and gravel operations,landfills, roads,dredge spoil disposal or construction of flood control works,an erosion and sedimentation control plan must be submitted unless the community is enforcing a state-approved shoreland management ordinance. In the absence of a state-approved shoreland ordinance,the plan must clearly specify methods to be used to stabilize the fill on site for a flood event at a minimum of the 100-year or regional flood event. The plan must be prepared and certified by a registered professional engineer or other qualified individual acceptable to the City Council. The plan may incorporate alternative procedures for removal of the material from the floodplain if adequate flood warning time exists. (5) Storage of materials and equipment: (a) The storage or processing of materials that are,in time of flooding, flammable explosive, or potentially injurious to human, animal or plant life is prohibited;and (b) Storage of other materials or equipment may be allowed if readily removable from the area within the time available after a flood warning and in accordance with a plan approved by the City Council. (E)Standards for all FF uses. (1) All new principal structures must have vehicular access at or above an elevation not more than two feet below the regulatory flood protection elevation. if a variance to this requirement is granted,the Board of Adjustment must specify limitations on the period of use or occupancy of the structure for times of flooding and only after determining that adequate flood warning time and local flood emergency response procedures exist. (2)For commercial uses,accessory land uses such as yards,railroad tracks and parking lots may be at elevations lower than the regulatory flood protection elevation. However,a permit for these facilities to be used by the employees or the general public shall not be granted in the absence of a flood warning system that provides adequate time for evacuation if the area would be 304 1 Page