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D RAIN? a.x)s/NCSL(30%Design) <br />DATE: 09 Jul 07 <br />DATE: <br />DRAINAGE FACILITIES <br />Downdrain - DD3 <br />4.73 <br />7.3 <br />3.6 <br />LF Bench w/ Drainage Ditch <br />DRAINAGE CALCULATIONS <br />7.3 <br />18' CMP Downd in <br />PROJECT TITLE NOdh County <br />Landfill <br />REFERENCE DRAWING: <br />RETURN PERIOD: 100- yr <br />4.73 <br />CALCULATIONS BY: ESA <br />PROJECT NUMBER: 118040!01000000 <br />LF Bench w/ Dmi age Ditch <br />CHECKED BY: <br />DESCRIPTION OF WORK: <br />Drainage Calculations (30% Design) <br />4.73 <br />11A <br />5.7 <br />LF Benin wl Drainage Ditch <br />DESIGN DRAINAGE RUNOFF OKA <br />POINT I.D.A AREA COEFF. <br />C <br />SUM (A) COMP. <br />COEFF. <br />C <br />OVERLAND ' <br />GUTTER/CHANNEL/CONDUIT TRAVEL TIME <br />RAINFALL DISCHARGE <br />LENGTH SLOPE LENGTH <br />L L <br />SLOPE MANNING HYDR. VELOCITY OVERLANC GUTTER <br />n RADIUS V TI CHANNEL <br />TIMEOF TOTAL INTENSITY SUBAREA TOTAL <br />CONC, Te I Da Ot <br />52 <br />Perimeter Bench w/ Dralnage Ditch <br />CONDUIT <br />Tc <br />(aerea) (acres) <br />(saes) <br />(teat) (fVft) 0880 <br />(tiff) (feet) (ttfsec) (minJ <br />Tp <br />(mla) <br />!min.) (min.). Whour) (cfs) <br />D RAIN? a.x)s/NCSL(30%Design) <br />DATE: 09 Jul 07 <br />DATE: <br />DRAINAGE FACILITIES <br />Downdrain - DD3 <br />4.73 <br />7.3 <br />3.6 <br />LF Bench w/ Drainage Ditch <br />7.3 <br />18' CMP Downd in <br />4.73 <br />9.8 <br />4.9 <br />LF Bench w/ Dmi age Ditch <br />17.1 <br />24- CMP DownMafn <br />4.73 <br />11A <br />5.7 <br />LF Benin wl Drainage Ditch <br />28.5 <br />24' CMP Dov nd In <br />4.67 <br />10.3 <br />52 <br />Perimeter Bench w/ Dralnage Ditch <br />382 <br />30' CMP Dawndmin <br />Downdrain - DD4 <br />3.31 <br />82 <br />4.1 <br />Diversion Berm w/ Dnainnege Ditch <br />8.2 <br />16' CMP Downdmin <br />4.88 <br />9.6 <br />4.8 <br />LF B -h w/ Drainage Ditch <br />15.9 <br />24' CMP Downdmin <br />4.73 <br />10.9 <br />5.4 <br />LF Bench w/ Dminage D'ech <br />26.8 <br />24 -CMP Da ndmin <br />4.73 <br />132 <br />8.6 <br />LF Bench w/ Drainage Ditch <br />40.0 <br />30- CMP Downdmin <br />4.67 <br />11.8 <br />5.9 <br />Pedmetef Bench w/ Dminega Ditch <br />51.6 <br />30' CMP Downdmin <br />---�1•�tnnn <br />D RAIN? a.x)s/NCSL(30%Design) <br />DATE: 09 Jul 07 <br />DATE: <br />DRAINAGE FACILITIES <br />Pa <br />Downdrain - DD3 <br />4.73 <br />7.3 <br />3.6 <br />LF Bench w/ Drainage Ditch <br />7.3 <br />18' CMP Downd in <br />4.73 <br />9.8 <br />4.9 <br />LF Bench w/ Dmi age Ditch <br />17.1 <br />24- CMP DownMafn <br />4.73 <br />11A <br />5.7 <br />LF Benin wl Drainage Ditch <br />28.5 <br />24' CMP Dov nd In <br />4.67 <br />10.3 <br />52 <br />Perimeter Bench w/ Dralnage Ditch <br />382 <br />30' CMP Dawndmin <br />Downdrain - DD4 <br />3.31 <br />82 <br />4.1 <br />Diversion Berm w/ Dnainnege Ditch <br />8.2 <br />16' CMP Downdmin <br />4.88 <br />9.6 <br />4.8 <br />LF B -h w/ Drainage Ditch <br />15.9 <br />24' CMP Downdmin <br />4.73 <br />10.9 <br />5.4 <br />LF Bench w/ Dminage D'ech <br />26.8 <br />24 -CMP Da ndmin <br />4.73 <br />132 <br />8.6 <br />LF Bench w/ Drainage Ditch <br />40.0 <br />30- CMP Downdmin <br />4.67 <br />11.8 <br />5.9 <br />Pedmetef Bench w/ Dminega Ditch <br />51.6 <br />30' CMP Downdmin <br />Pa <br />