Laserfiche WebLink
i <br /> ( TIIvtE OF COT'CENTRA'I'ION FOR: <br /> ' GREENS OF 1�,rF'RRn.T.CitEEK <br /> M[JLTI-HOME COMPLEX <br /> IPROPOSED CONDITIONS <br /> ShcetFlow: T,= 0.42(n,L)o.e <br /> I (P:)°s(So)o.� <br /> I Where: T,: travel rime(min). <br /> n,: sheet flow Manning's Effective roughness coefficient(from Table 3.5.2C). <br /> L: flow length(ft). <br /> ' pi; 2-year,24-hour rainfall(in), (see Figure 3.S.1C�. <br /> so: slope of hydraulic gcade line(lend slope,ft/R). <br /> IC6ennel Flow: T,= L <br /> �����os <br /> � Where; T,: travel time(min). <br /> � L: flow Imgth(ft). <br /> lc�: time of concenuation velocity factor(ft/s),(sce Table 3.5.2C). <br /> s,: slope of hydtaulic grade line(land slope,ft/ft). <br /> ! <br /> CALCULATIONS: <br /> � Sheet Flow: Segment#= 1 T,= 2.3722 min. <br /> �y= 0.17 <br /> � L— 35 <br /> change EI.= 9.45 <br /> pz= 1.55 <br /> Is,= 0.27 <br /> I Segment#= 2 T,= 1.5635 min. <br /> n,= 0.17 <br /> L= 20 <br /> change El.= 5 <br /> PZ= 1.55 <br /> se= 0.25 <br /> I <br /> � �3 1 <br /> �� <br /> �� <br /> f <br />