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<br />• <br /> <br />• <br /> <br />112 Vpan and grated concrete Vpan - 7.35 H: 1 Vsides .50' min. depth .40 <br /> channel past guard shack grade. <br /> concrete ditch 2' wide, 0.30% grade, 1.4 min. <br /> depth <br />113 Drain pipe from grated <br /> channel to Pond 8 12"PVC, 1.1 % grade <br />221 Collection ditch above portal 5:1 & 1:1 side slopes, 15% grade, 0.3 min. depth <br />222 Drain pipe from portal azea <br /> to Pond 8 33% grade, 8" min., 8" in place <br /> RSS-6 (Rev. 12/16/96) <br />231 Drain from road under <br /> conveyor to Pond 8 33% grade, 6"min. <br />331 North collection ditch on <br /> RSRDA 1:1 side slopes, 1 % grade, 0.8' min. depth <br />100 Yeaz Diversion above RSRDA <br />Structure # Structure Description <br />231 100 yr. diversion -Hill by <br />water tank <br />Design <br />13% grade, road graded to the inside with <br />I Oh:1 v slope and 2h:1 v hillside slope, 0.6' <br />min. depth. <br />RSS-7 <br />(Rev. 9/10/98) <br />