10-12-2022 Council Packet - Laserfiche WebLink

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Little Canada Zoning Code Stormwater Management 928-9 shall conform to the current City and NPDES construction permit requirements. In addition the following are required: a. A bench shall be provided starting at the normal water level and ending 1 foot below normal water level with side slopes no less than 10 feet horizontal to 1 foot vertical (10:1) for safety considerations. Pond side slopes shall not exceed 4 feet horizontal to 1 foot vertical (4:1) without approval of the City. b. All public and private owned stormwater management facilities shall provide an unobstructed access path (minimum of 10 feet) capable of supporting light truck traffic during normal weather for the purpose of conducting inspections of the facility and maintenance thereof. No private stormwater facility may be approved unless an easement is provided to the City allowing access for maintenance and inspection. Maintenance agreements before, during, and after development are also required. c. To provide proper protection for adjacent property within the first tier from the pond, the design storm interval for the ponding area is a 100- year, 24-hour storm with correctly sized conveyances for 100-yr, 24-hour storm flows consistent with standards used by the City in planning for the flood protection of homes and public facilities. 7. Floodplain - No person or political subdivision shall alter or fill land below the 100-year flood elevation of any water body, public water, or public water wetland without first obtaining a permit from the Watershed District. a. Placement of fill within the 100-year floodplain is prohibited unless compensatory storage is provided. Compensatory storage must be provided on the development or immediately adjacent to the development within the affected floodplain. Compensatory storage shall result in the creation of floodplain storage to fully offset the loss of floodplain storage. Compensatory storage shall be created prior to or concurrently to the permitted floodplain filling. b. All habitable buildings, roads, and underground parking structures on or adjacent to a project site shall comply with the following flood control and freeboard requirements: See Table 3 below for freeboard requirements.