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Table 4.2-13 Culvert and Ditch Sizing Calculations <br />CULVERTS DESIGN FOR 10 YEAR 24 HOUR STORM <br />Desicn Point Size of Culvert Description Flnw From <br />"Culvert <br />Flnw lnfsl Canacifv lrfsl <br />A 30 North Diversion Inlet C-2 14.03 20 <br />B 18 Collector from Small Area C-1 3.67 5.75 <br />C 30 North Diversion Outlet C-1 8 C-2 17.7 20 <br />D 42 South Diversion Inlet C-3 32.43 46 <br />E 18 Collector from Small Area C-4 0.86 5.75 <br />G 42 'South Diversion Outlet C-3 & C-4 33.7 46 <br />H 42 McClave Creek Road Crossin C-lthrou h C-4, C-6 51.98 "'46 <br />I 30 Road Crossin Disturbed Flow North 1l2 of D-1 use 100% 4.32 20 <br />J 18 Road Crossin at Second Gate C-7 5.2 5.75 <br />K 12 Road Crossin Disturbed Flow Road Flow Point I to K 0.5 2.05 <br />L 24 25 Year Event Excess from Pond Emer enc S illwa 9.9 12 <br />M 24 Collector Ditch behind Stock files C-8, C-9 & C-10 4.6 12 <br />N 18 Diversion from Small Area C-11 0.68 5.75 <br />O 36 Pond Inlet D-3 1.38 32.5 <br />P 48 Road Crossin at Haul Road C-1 throw h C-4, C-6, C-7, C-15 61.2 65 <br />Note: Design Points are shown on Figure 2.2-3 <br />" Smooth Pipe <br />*' Culvert Capacity from Handbook of Steel Drainage & Highway Construction with HW/D ratio = 1 <br />'"" HW/D Ratio of 1.1 Required to pass design flow <br />Mc Vol I Page 1 9/05 <br />