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AL.- <br />103.0 <br />CoMluenra O <br />0 <br />4.73 <br />11.1 <br />5.6 <br />LF OuWope Bench wl Oran <br />DRAINAGE CALCULATIONS <br />11.1 <br />18' CMP Dovmdmin <br />PROJECT TITLE North CDunly <br />Landfill <br />REFERENCE DRAWING: <br />4.03 <br />19.2 <br />9.6 <br />LF Bench w/ Dminago Ditch <br />28.7 <br />24' CMP Downdraln <br />RETURN PERIOD: 100- yr <br />.—._ <br />CALCULATIONS BY: ESA <br />DATE: <br />4.17 <br />18.8 <br />9.4 <br />LF Bench w! Orauwge Ditch <br />48.4 <br />le Jul07 <br />PROJECT NUMBER: 1 1 8040/0 <br />1 00 0 <br />00 0 <br />Pedrneler subarea (bw <br />51.9 <br />Combined O <br />229 <br />CHECKED BY: <br />DATE: <br />DESCRIPTION. OF WORK: <br />Drainage Calculations (30% Design) <br />West Perimeter Duch <br />TOW dkcher9e to marsh <br />DESIGN DRAINAGE RUNOFF CxA <br />SUM (A) <br />COMP. OVERLAND <br />GUTfERtCHANNE/CONDUIT <br />POINT LD.S AREA COEFF. <br />COEFF. LENGTH 3LOPE. <br />LENGTH <br />TRA <br />TRAVEL <br />SLOPE MANNING HPDR. <br />TIME <br />RAINFALL DISCHARGE <br />ORAINAGE FACILITIES <br />C <br />VELOCITY <br />GUTTER <br />TIMEOF TOTAL INTENSITY SUBAREA TOTAL <br />C L <br />L <br />n RADIUS V Ti <br />CHANNEL <br />CONC. Tc I Ga a <br />CONDUIT <br />Tc <br />(tea) (acres) <br />(saes) <br />(feat) (Ra) <br />(feat) <br />(fUH) (lest} (tUsac (mint <br />Tp <br />(min.) <br />(ndn.) (min.) andaw r..r.� <br />DRAIN1a.xls/NCSL(30%Design) (W) <br />-- <br />103.0 <br />CoMluenra O <br />Downdraln - DD6 <br />4.73 <br />11.1 <br />5.6 <br />LF OuWope Bench wl Oran <br />11.1 <br />18' CMP Dovmdmin <br />4.03 <br />19.2 <br />9.6 <br />LF Bench w/ Dminago Ditch <br />28.7 <br />24' CMP Downdraln <br />mom <br />4.17 <br />18.8 <br />9.4 <br />LF Bench w! Orauwge Ditch <br />48.4 <br />30- CMP Downdreln <br />-- <br />103.0 <br />CoMluenra O <br />Downdraln - DD6 <br />4.73 <br />11.1 <br />5.6 <br />LF OuWope Bench wl Oran <br />11.1 <br />18' CMP Dovmdmin <br />4.03 <br />19.2 <br />9.6 <br />LF Bench w/ Dminago Ditch <br />28.7 <br />24' CMP Downdraln <br />4.17 <br />18.8 <br />9.4 <br />LF Bench w! Orauwge Ditch <br />48.4 <br />30- CMP Downdreln <br />4.61 <br />6.3 <br />3.1 <br />Pedrneler subarea (bw <br />51.9 <br />Combined O <br />229 <br />131.5 <br />Confluence a <br />TOW dkcher9e to marsh <br />2 <br />