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APPEI�DiX A // <br />l„�� <br />Stream Bank Erosion Control Calculations <br />ProJect preclpttatton values: <br />G month 0.99 in. <br />2 yr 1.55 <br />10 yr 2.25 <br />25 yr 2.60 <br />100 yr 3.25 <br />ExfsUng Event Summary: <br />�asinlD Poak 0 Penk T Pcak Vol Area �Aethod <br />•-•--- (cls) (hrs) (ac•tt) ac /�oss <br />�sc:y o.r e so a axa a ae scsscs <br />Festrq 0.1� 8.97 O.Oo77 006 SCffiSCS <br />uas�:�p oze e�� o.tz�e o.es scsscS <br />Drainage Area: Existing <br />Hyd Methal: SCS Unit Hyd <br />Paak Fnctor. 46A.00 <br />Storm Dur 24.00 hrs <br />Ama CN <br />Pcrncus 0 86G0 ac 85.G7 <br />Impervious c O.OJ <br />roWi o.asoa nc ____ <br />Supporting Data: <br />Pervious CN Data: <br />Open Space (Grass cover > 75�) <br />Pcrvtous TC Data: <br />Fbw rype: Doscriptbn: <br />Shcet OverlaM Flow <br />Shallow Overland Flow <br />n �{ <br />Flelntyps Event <br />TYPEIF 9yr <br />TYPEIA t0yi <br />rvr�in �ooyr <br />Loss Metnotl: SCS CN Numbar <br />scs n�: oso <br />TC <br />O.G7 br, <br />0.07 hrs <br />consir -}enf w�tlti �� � 1'(t� <br />85.00 0.8600 ac <br />Lengih: SWpe�. Coeff: Travel7ime <br />300.00 It 1.73% 0.1700 39.71 min <br />20.001t 0.50% 71.0000 0.29 mm <br />Proposed Event Summary: <br />BasinlD Peak 0 Peak T Peak Vol Area Methotl <br />--•••• (cIs) (hrs) (octi) uc /Loss <br />wR,aw aii a�o 000�„ oc� scs.scs <br />Ropcsbl 028 800 00959 067 SCS:SCS <br />Wop�cO O.0 8.00 01�85 087 SCSlSCS <br />Ora(nage Area: Proposed <br />H��d M1lelhod: SC5 Unit Hyd <br />Peak Factor: 4&7.00 <br />Stam Dur 24.00 hrs <br />Area CN <br />Pervious 02000 ac 86.00 <br />pemous 0.4700 aa_ 98.00 <br />Tc .G700 ac - -�( <br />Supporting Da a: � <br />Pervious CN Data: <br />Land,GipC�tl afoa �G.00 <br />Impervious CN Deta: <br />Paved Ar=as 98.00 <br />Pervious TC Data: <br />Fbw lype: Desaiplion: <br />ShoCt Shoat flow L�ndsppCd FVcu <br />Rainlypa Event <br />7Yi[fA 7yr <br />tYVE7A t0yr <br />NPEIA 1Wyr <br />Loss Melhod: SCS CN Numbar <br />SCS /U�s: 0.20 <br />TC <br />0.27 hrs <br />0.11 hrs <br />S �un+ber <br />2%li -��� nq <br />J <br />0.2000 ac <br />0.4700 ac <br />ou9hi- iro bf '1-he 52rne q5(� <br />� 1�A�-SS yok are (�,C C04N'{'I fW yGY' <br />c:� Io�pasg CtrE0.. � <br />Lenglh: Slopc: Coetl: <br />19.00 ft 1.00% 0.4000 <br />p:n:riq[I�il't�w•ucrtHa�ari�i\pK�di�Abw ii3'7A3 <br />TrnvelTGne <br />10.78 min <br />Pngc luf2 <br />� <br />