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• # Structure Description <br />112 Vpan and grated concrete <br />channel past gard shack <br />113 Drain pipe from grated <br />channel to Pond 8 <br />221 Collection ditch above portal <br />222 Drain pipe from portal area <br />to pond 8 <br />231 Drain from road under <br />conveyor to Pond 8 <br />331 North Collection ditch on <br />RSRDA <br />• 100 Year Diversion above RSRDA <br />231 100 yr diversion -Hill by <br />water tank <br /> <br />Design <br />Vpan - 7.35 H:1 V sides 0.50' min depth 0.40% <br />grade. <br />concrete ditch 2' wide, 0.3% grade, 1.4 min <br />depth <br />12" PVC, 1.1%grade <br />Replaced by RSRDA upper diversion ditch <br />See Appendix 14-6 page 14-6-2 thru 10 <br />See page RSS-36 <br />See page RSS-36 <br />Eliminated by RSRDA cover project <br />Replaced by RSRDA upper diversion ditch <br />See Appendix 14-6 page 14-6-2 thru 10 <br />RSS-7 <br />(Rev. 9/02) <br />