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ditcheg~ and Culverts, A copy of the computer program's input and output file information <br /> has be@n inclVded in path sedimentation pond design report. <br />the input iriclud¢s precipitation amounC (incheg), uat@rshed area (acres), tim¢ of <br />conpenvtettan Chaur~t, runoff CurYe ~ number CLNt, representati v@ part io l¢-site <br />lists ib~utions o5 the soil types in hhe watershed, Sedi R.entolo9y ihf acaAacion, and spillway <br />i n5 osmetion, @tc. <br />Yhq precipitation amount; for the Ypest Ninp for the d@si9n storm durptions Vere abtainpd <br />frgm the NpAA pre@i pifatfon frequently A}las pr enioita LOn - fry rent Cl ac of the 17astern <br />St fes Volume ll[ ~ C¢lorado, 1973, end are listed below: <br />10-Ygar, 24-hour - 1.70 inches <br />25-Y@ar, 24-hour - 2.'10 inches <br />100-Ygar, 24'hour - 2.50 inches <br />These ambunts also include uat er emanating from snau cover a; snbwmelt in a limited <br />period of time. <br />ihs runof< curve hUmger (CN) Ss a fpctar relating the amount Uf rai of ell co the amount bf <br />runoff far a giveh aoee. Thp soil pcodibil ity factor (^k" factor) is a factbr of a soils <br />su,ceptiU{lity to erasioh nntl fnf ilgration aapacitY. These factors are dapendent upgn the <br />inTiltratlon characteristics of the sgil types and the type and eryount o5 v@getQtioh, <br />TahLes t3'~1 and 13-2 list the vQl ue.~, of CN and "k" for different soils itrpes at the yoagt <br />Mihe. <br />T h'e Ch er~d ~k" factbr for >tach o5 th@ ponds is bet etmined as b weighted avera9e• The <br />undisturbed area curve Numbqr and ~`%" factor lnf ormation is bas@d vh the veg et etign and <br />soils information foVnd within Tabs 9 end 10, resp@ctivel y, ofi the Yoast 'M inq permit, <br />The sediment storage is calcVlated using the Revised Universal Soil loss Equation <br />contained within contained within the SEDCAD Computer program. The gpilluays are <br />i <br />designed Using the spillway routing subroutine program in the SEDCAD computer program and <br />appliCabLp ehgin4erih9 pr oc pdures as tlescribed in the Text of each sedimentation pond <br />design report. <br /> All Sediment ponds are design@d end locgted to captur@ surf aGe runoff from VpStraam <br /> disturbance Bless antl t0 comply with all applicable State and federal regulations. <br />Degi grls for the following sediment scion ponds 8re br Dulled in this tab: <br />7 Revised 051$3/95 <br />