Laserfiche WebLink
City of Mounds View Page 12 <br />Ardan Avenue Drainage Subdistrict Analysis 000435-07129-0 <br />4.8 LOW POINT ON ARDAN AVENUE,WEST OF REDOAK DRIVE <br />Existing Flood Protection Characteristics: <br />ƒOverland area to street low point (Node 30) = 2.7 acres <br />ƒSurveyed critical flow path elevation (circled in blue above) = 906.29 feet <br />ƒSurveyed lowest opening elevation = 907.14 feet (2749 Ardan Avenue Garage Floor) <br />ƒFlood protection between critical flow path and lowest opening elevations = 0.85 feet <br />ƒExisting downstream conveyance restriction = 15” storm sewer, downstream of Node 30 <br />Proposed Improvements to Increase Flood Protection: <br />ƒUpsize existing storm sewer between Nodes 21 and 22 from 18” to 21” <br />Storm sewer conveyance capacity between Nodes 30 and 30A is increased from 6 to 14 cfs