Laserfiche WebLink
• <br />~ Bacon a'aavfs ~itah <br />3nc. asF~os <br />r <br />[ralr[tn~-corat ructors SITE PREPARATION & DRAINAGE <br />REV. 1 <br />s~iT ua[ crtr, vr~M STANDARD FORM <br /> <br /> RUNOfF & SEDIMENT CALCULATIONS 9/80 <br /> SHT. 1 Of 12 <br />DETERMINATION OF SEDIMENT VOLUME, SETTLING VOLUME <br />ANO TOTAL STORAGE VOLUME OF SEDIMENTATION PONDS <br />PROJECT~E~r~ FUELS 7E5er;,W~o w,~u6 JOB NO.~G-3g1o_ <br />SEDi mEUT~T~orJ po+-sn Purl 'D. Cc ~ POND NO. ~- ~ <br />BV \Vm. (bIICX,ES DATE IU- $-80 CHECKED BY Acs DATE . 1-S ~_ <br />1. SEDIMENT VOLUME <br />CONTRIBUTING DRAINAGE AREA, ACRES <br />dots r+=+~~cl„dc 1.96 ~.~;.+„r6.a <br />~I+pc nb..,e c.+i•e{j d;+rLr ..e.+l, <br />4-4.03 of o P..r.t a..+ry. <br />DISTURBED AREA IN CONTRIBUTING AREA, ACRES Q.p. rj~ - 3~0I Qspl, r.li )~c.L - 37, ~j-1 <br />A. Sediment Volume = .1 acre ft. of sediment per acre of disturbed area. <br />_ .1 acre-ft./acre X 3"1.51 acre <br />= 3; 7tG acre~it. <br />B. Sediment Volume = 3 years sediment from entire watershed as determinetl by the Universal <br />Soil Loss Equation IUSLEI USLE : A=RKLSCP <br />r 1 <br />LJ <br />Where: A = Average annual soil loss in tons/acre. <br />R = Rainfall factor <br />K = Soil erodibility factor <br />LS = Slope length and slope gradient factor <br />C = Cover factor <br />P = Erosion control practice factor <br />Watershed must be divided into sub areas if different (actors occur for different areas within the watershed. <br />• <br />SUBAREA SUB AREA DISCRIPTION AREA R K LS C p A TONS <br />I.D. NO. Ar A X Ar <br /> Lndis ur• e <br />R2n4SaC i~IGP.anCt: Com IcY. 3.45 3O 0.24 IO,S 0.10 ' I.O '1.5b 26.08 <br /> 1c~s.~l s+o,-~y~ (3•.,~ y,lr, 30 .28 ,190 •t.o ~O.yo t43 139.5 <br /> Gu 5 ePe ~I.S ~ t <br />2cn4s*"G Pfceancc Ge... Icx ' <br />9.68 ~ <br />30 X <br />0.20 <br />130. <br />1.0 <br />i .D ' <br />ISO.a <br />I'-42.40 <br /> I~ccc1 Artas Nw,l o=As <br />GYFJCI SurfFC~al -1 <br />I I•~ <br />3o <br />O•ID <br />0.18 <br />f.U <br />1.0 <br />0,54 <br />`~.4~ <br /> Asohc~ ~. cccd *r ~:9 a.-ca. 3A1 30 O iO.lp 1.0 1,0 O O,D <br /> ape I ~1 a~~~* <br />k <br />C <br />2 <br />0 <br />~ 3.Iri 3o O,to 1 <br />8 I.O 7.0 , g4, t~0.lo <br /> rn <br />. <br />st:G-IAo a so.+ <br />cre <br /> Sed,:,..r,f ~o..d 209 30 .28 D.?O 1.O 1.0 1.64 i.44 <br />e~ ur t o~L w v[. <br />•.f~di+tR „.4.:..I.,at4 <br />7.08 <br />TOTAL AREA 44.03 TOTAL TONS PER YEAR 2(041. Z4 <br />TONS/y EAR : 20001bRON + 3 YEARS <br />SEDIMENT VOLUME (ACRE FEET) _ - Q,63 <br />(Settled Density = ~ Ib/ft3) ~~ IM/h 3 a 43560 hZl ACRE <br />