(A) Permit required. A permit must be obtained from the Zoning Administrator to verify if a development meets all applicable standards outlined in this chapter prior to conducting the following activities:
(1) The erection, addition, modification, rehabilitation, or alteration of any building, structure, or portion thereof. Normal maintenance and repair also requires a permit if such work, separately or in conjunction with other planned work, constitutes a substantial improvement as defined in this chapter.
(2) The construction of a dam, on-site septic system, or any fence not meeting the definition of a farm fence outlined in § 154.07 of this chapter.
(3) The change or extension of a nonconforming use.
(4) The repair of a structure that has been damaged by flood, fire, tornado, or any other source.
(5) The placement of fill, excavation of materials, or the storage of materials or equipment within the floodplain.
(6) Relocation or alteration of a watercourse (including stabilization projects or the construction of new or replacement culverts and bridges), unless a public waters work permit has been obtained from the Department of Natural Resources.
(7) Any other type of DEVELOPMENT as defined in this chapter.
(B) Minimum development standards. All new development must be:
(1) Designed (or modified) and adequately anchored to prevent floatation, collapse, or lateral movement of the structure resulting from hydrodynamic and hydrostatic loads, including the effects of buoyancy;
(2) Constructed with materials and equipment resistant to flood damage;
(3) Constructed by methods and practices that minimize flood damage;
(4) Constructed with electrical, heating, ventilation, ductwork, plumbing, and air conditioning equipment and other service facilities that are designed and/or located so as to prevent water from entering or accumulating within the components during conditions of flooding;
(5) Reasonably safe from flooding and consistent with the need to minimize flood damage within the flood prone area; and
(6) Assured to provide adequate drainage to reduce exposure to flood hazards.
(C) Floodplain developments must not adversely affect the hydraulic capacity of the channel and adjoining floodplain of any tributary watercourse or drainage system.
(D) Materials that, in time of flooding, are buoyant, flammable, explosive, or could be injurious to human, animal, or plant life shall be stored at or above the flood protection elevation, floodproofed, or protected by structural measures consistent with the standards set forth herein. Furthermore, storage of materials likely to cause pollution of the waters, as defined in M.S. § 115.01, as it may be amended from time to time, if subject to flooding are prohibited unless adequate safeguards approved by the state water pollution control agency are provided.
(E) Critical facilities, as defined in § 154.07 of this chapter, are to be located, so that the lowest floor is not less than two feet above the base flood elevation, or the 0.2% annual chance flood elevation, whichever is higher.
(Ord. passed 10-22-2020)