FINAL ORDINANCE NO. 80-84 - Laserfiche WebLink

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5. When at any one time more than 1,000 cubic yards of fill or other similar material is located on a parcel for such activities as on-site storage, landscaping, sand and gravel operations, roads, dredge spoil disposal or construction of flood control works, an erosion/sedimentation control plan must be submitted. The plan must be prepared and certified by a registered professional engineer. E. Standards for All Floodplain Uses: 1. All new principal structures must have vehicular access at or above 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 time of flooding. 2. 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 such 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 inundated to a depth greater than four feet per second upon occurrence of the regional flood. Amended by Ord. 80-84, February 16, 1993.) 3. 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 multi -structure or multi - lot 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. 4. 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. 5. All dwelling units must be at least twenty (20) feet wide through the main living area of the structure. The structure must have continuous frost footings. Continuous frost footings are not required for porches, decks, and other appendages so long as proper post type footings per existingbuildingcodesareconstructed. 6. Travel trailers, travel vehicles, and manufactured homes L are prohibited in the floodplain district. 7