2608 Sp Level Spreaders

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Job: Sheet No. Calc by: Check by:

Sharon Hills 1 of SCS Date Date

1 11/7/2008

Level Spreader Calculations Width Use 6 foot Minimum width all level spreaders Level Outlet Apron Spreader Width Pipe D Width (ft) (ft) (ft) Location FEO1-1 1.50 4.50 6.00 FEO2-1 3.00 9.00 10.00 FEO7-1 2.00 6.00 6.00 FEO7-2 1.00 3.00 6.00 FEO8-1 2.00 6.00 7.00

Depth Q Pipe (Actual) Diameter (ft³/s) (ft) FEO1-1 3.17 1.50 FEO2-1 17.03 3.00 FEO7-1 26.61 2.00 FEO7-2 4.07 1.00 FEO8-1 23.76 2.00 Qpipe = 1.486/n*A*(Rh)^(2/3)*s^0.5

Location FEO1-1 FEO2-1 FEO7-1 FEO7-2 FEO8-1

Q (cfs) 100 Year 3.17 17.03 26.61 4.07 23.76

Slope, s Manning's (ft/ft) n 0.012 0.013 0.028 0.013 0.021 0.013 0.026 0.013 0.017 0.013

Pipe TW Invert (ft) Elevation (ft) 301.00 301.54 305.00 305.80 263.00 264.37 254.00 254.62 281.00 282.35

Depth in pipe (ft) 0.5380 0.7950 1.3652 0.6210 1.3483

Ø (deg) 147.16 123.93 137.16 151.99 139.23

Area (ft²) 0.570 1.500 2.285 0.513 2.253

Wetted Perimeter (ft) 1.93 3.24 3.89 1.82 3.85

Hydraulic Radius Rh (ft) 0.30 0.46 0.59 0.28 0.58

Q PIPE (ft³/s) 3.17 17.03 26.61 4.07 23.76

Level Spreader Lip Elevation 301.60 306.00 264.50 254.70 282.50

Length 0.5 cfs/ft Location FEO1-1 FEO2-1 FEO7-1 FEO7-2 FEO8-1

Q (cfs) 100 Year 3.17 17.03 26.61 4.07 23.76

Q/.5 6.34 34.06 53.22 8.14 47.52

Min. Length (ft) 6.5 35.0 54.0 9.0 48.0

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