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an®�® <br />�E." <br />5.4 <br />� <br />" <br />���MMi <br />103 <br />DRAINAGE CALCULATIONS <br />PROJECT TITLENorth County <br />Landfill REFERENCE DRAWING: <br />RETURN PERIOD: 100- yr <br />4.0 <br />CALCULATIONS BY: ESA <br />PROJECT NUMBER: <br />118040101000000 <br />15.9 <br />24' CMP Downdrain <br />DESCRIPTION OF WORK: Drainage Calculations 130°/ Design) -East Perimeter Ditch <br />CHECKED BY: <br />�m.������lllll� <br />8.7 <br />GUTTER(CHANNEUCONO UIT TRAVEL TIME <br />SLOPE MANNING HPDR. VELOCITY OVERLANC GUTTER <br />n RADIUS V TI CHANNEL <br />LF Bench w/ Drainage Ditch <br />DESIGN DRAINAGE RUNOFF <br /># <br />POINT I.D. AREA COEFF. <br />C <br />CTA SUM (A) COMP. OVERLAND <br />- <br />COEFF. LENGTH SLOPE LENGTH <br />C L L <br />RAINFALL DISCHARGE <br />TIME OF TOTAL INTENSITY SUBAREA TOTAL <br />CONC. TC I Qa at <br />24' CMP Downdrain <br />CONDUIT <br />Tc <br />(acres) <br />(acres) (aces) (Leap (iVlt) deep <br />(ft/1t) feet <br />( ) ((Vast) (min.) <br />Tp <br />(min.) <br />{mint (1Mn.) (Irmo") (ds) <br />an®�® <br />�E." <br />5.4 <br />� <br />" <br />���MMi <br />103 <br />18' CMP Dwmdrain-- <br />4.88 <br />7.9 <br />4.0 <br />LF Bench w/ On*tage Ditch <br />15.9 <br />24' CMP Downdrain <br />�m.������lllll� <br />8.7 <br />4.3 <br />LF Bench w/ Drainage Ditch <br />25.0 <br />24' CMP Downdrain <br />4.73 <br />102 <br />5.1 <br />LF Bench w/ Drainage Ditch <br />35.1 <br />30' CMP Downdrain <br />9 <br />DATE: 12 Jul 07 <br />DATE: <br />DRAINAGE FACILITIES <br />3.22 <br />�E." <br />5.4 <br />� <br />" <br />���MMi <br />103 <br />18' CMP Dwmdrain-- <br />4.88 <br />7.9 <br />4.0 <br />LF Bench w/ On*tage Ditch <br />15.9 <br />24' CMP Downdrain <br />�m.������lllll� <br />8.7 <br />4.3 <br />LF Bench w/ Drainage Ditch <br />25.0 <br />24' CMP Downdrain <br />4.73 <br />102 <br />5.1 <br />LF Bench w/ Drainage Ditch <br />35.1 <br />30' CMP Downdrain <br />4.67 <br />9.2 <br />4.6 <br />Perimeter Bench w/ Ominege Ditch <br />442 <br />30' CMP Downdrain <br />4.255.0 <br />Perimeter flow <br />3.86 <br />48.1 <br />Combined O <br />9 <br />DATE: 12 Jul 07 <br />DATE: <br />DRAINAGE FACILITIES <br />3.22 <br />10.7 <br />5.4 <br />Downdrain - DD2 <br />Dlvervon Berm w/ D_rai�wge D- <br />103 <br />18' CMP Dwmdrain-- <br />4.88 <br />7.9 <br />4.0 <br />LF Bench w/ On*tage Ditch <br />15.9 <br />24' CMP Downdrain <br />�m.������lllll� <br />8.7 <br />4.3 <br />LF Bench w/ Drainage Ditch <br />25.0 <br />24' CMP Downdrain <br />9 <br />DATE: 12 Jul 07 <br />DATE: <br />DRAINAGE FACILITIES <br />3.22 <br />10.7 <br />5.4 <br />Downdrain - DD2 <br />Dlvervon Berm w/ D_rai�wge D- <br />103 <br />18' CMP Dwmdrain-- <br />4.88 <br />7.9 <br />4.0 <br />LF Bench w/ On*tage Ditch <br />15.9 <br />24' CMP Downdrain <br />4.73 <br />8.7 <br />4.3 <br />LF Bench w/ Drainage Ditch <br />25.0 <br />24' CMP Downdrain <br />4.73 <br />102 <br />5.1 <br />LF Bench w/ Drainage Ditch <br />35.1 <br />30' CMP Downdrain <br />4.67 <br />9.2 <br />4.6 <br />Perimeter Bench w/ Ominege Ditch <br />442 <br />30' CMP Downdrain <br />4.255.0 <br />Perimeter flow <br />3.86 <br />48.1 <br />Combined O <br />322 <br />23.0 <br />11.5 <br />Downdraln - DD1 <br />Diversion Berm wl Orange Ditch <br />23.0 <br />24' CMP O-ndraln <br />4.88 <br />15.0 <br />7.5 <br />32.9 <br />LF Bendy -w/ Dratrrege Ditch <br />30' CMP Downdrain <br />4.73 <br />- 11.6 <br />5.8 <br />44.6 <br />LF Bench w! Otalnage Ditch <br />30' CMP De -drain <br />4.73 <br />11.6 <br />5.8 <br />56.2 <br />LF Bench w/ Drainage Ditch <br />36' CMP Downdra(r1 <br />1 <br />