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DRAINI a.xls/NCSL(30%Design) <br />DRAINAGE CALCULATIONS <br />PROJECT TITLE <br />North County <br />Landflll <br />REFERENCE DRAWING: <br />RETURN PERIOD: 100- yr <br />CALCULATIONS BY: <br />ESA <br />DATE: 09 Jul 07 <br />PROJECT NUMBER: <br />118040101000000 <br />CHECKED BY: <br />DATE: <br />DESCRIPTION OF WORK: <br />Drainage <br />Calculations (30% <br />Desian) <br />DESIGN DRAINAGE <br />POINT LD.ffi AREA <br />RUNOFF <br />COEFF. <br />C <br />C.A <br />SUM (A) <br />COMP. OVERLAND <br />COEFF. LENGTH SLOPE <br />C L <br />LENGTH <br />L <br />GUTTER/CHANNEUCONDUIT TRAVEL TIME <br />SLOPE MANNING HYDR. VELOCITY OVERLAND GUTTER <br />n RADIUS V n CHANNEL <br />TIME OF TOTAL <br />CONC. Tc <br />RAINFALL DISCHARGE <br />INTENSITY SUBAREA TOTAL <br />i Oa Ot <br />DRAINAGE <br />FACILITIES <br />CONDUIT <br />Tc <br />TD <br />( 1 <br />(arses) <br />(aerea) <br />(teat) <br />(ftift) <br />(feet) <br />(hit) <br />(feel) ((Vase) (mint <br />(min-) <br />(min.) (min.) <br />(inPoour) <br />(ds) <br />Downdrain - DD5 <br />Et 2,8 <br />0.6 <br />1.89 <br />150 <br />0,33 <br />500 <br />0.02 <br />0.03 0.45 4.10 3.4 <br />2.0 <br />5.5 <br />4.73 <br />8.0 <br />4.0 <br />LF Bench w/ Drainage <br />Ditch <br />8.0 <br />18' CMP Downdnain <br />E2 82 <br />0.8 <br />374 <br />150 <br />0.10 <br />500 <br />0.02 <br />0.03 0.447 4.10 5.1 <br />2.0 <br />7.2 <br />4.17 <br />15.6 <br />7.8 <br />LF Bench wf Drai nage Ditch <br />22.6 <br />24' CMP Dowrdraln <br />E3 5.4 <br />0.8 <br />328 <br />760 <br />0.10 <br />500 <br />0A2 <br />0.03 0.447 4.10 5.1 <br />2.0 <br />7,2 <br />4,17 <br />13.6 <br />8.8 <br />IF Bench Drainage <br />w/ Ditch <br />362 <br />30' CMP Downdrain <br />Downdrain - DD6 <br />F1 39 <br />0.6 <br />236 <br />150 <br />0.33 <br />500 <br />0.02 <br />0.03 0.45 4.10 3.4 <br />2-0 <br />5.5 <br />4,73 <br />11.1 <br />5.6 <br />LF Outsbpe Bench w/ Drainage Ditch <br />11.1 <br />18' CMP Downdrain <br />F2 79 <br />09 <br />4.75 <br />750 <br />0.10 <br />800 <br />0.02 <br />0.03 0.447 4.10 5.1 <br />2.4 <br />7.6 <br />4.03 <br />14.2 <br />9.6 <br />LF Bench w/ Drainage Ditch <br />26.7 <br />24- CMP Downdrain <br />F3 7.5 <br />0.6 <br />4.51 <br />150 <br />0.10 <br />500 <br />0.02 <br />0.03 0.447 4.10 5.1 <br />2.0 <br />7.2 <br />4.17 <br />18.8 <br />9.4 <br />LF Bench w/ Drainage Duch <br />48,4 <br />30' CMP Doamdrain <br />Downdrain - D07 <br />Gl 59 <br />0.6 <br />3.53 <br />150 <br />0.10 <br />500 <br />0.02 <br />0.03 0.447 4.10 5.1 <br />2.0 <br />7.2 <br />4.17 <br />14.7 <br />7.3 <br />LF Bench w/ Drainage Ditch <br />14.7 <br />24' CMP D-drain <br />DRAINI a.xls/NCSL(30%Design) <br />