SW6240105_Design Calculations_20240424 (5)

Culvert Report
Hydraflow Express Extension for Autodesk®Civil 3D®by Autodesk, Inc. Thursday, Dec 21 2023
PIPE 4 (25-YR)
Invert Elev Dn (ft) = 246.00 Calculations
Pipe Length (ft) = 60.00 Qmin (cfs) = 0.56
Slope (%) = 3.58 Qmax (cfs) = 0.56
Invert Elev Up (ft) = 248.15 Tailwater Elev (ft) = (dc+D)/2
Rise (in) = 18.0
Shape = Circular Highlighted
Span (in) = 18.0 Qtotal (cfs) = 0.56
No. Barrels = 1 Qpipe (cfs) = 0.56
n-Value = 0.012 Qovertop (cfs) = 0.00
Culvert Type = Circular Concrete Veloc Dn (ft/s) = 0.51
Culvert Entrance = Groove end projecting (C) Veloc Up (ft/s) = 2.49
Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.2 HGL Dn (ft) = 246.89
HGL Up (ft) = 248.43
Embankment Hw Elev (ft) = 248.50
Top Elevation (ft) = 250.51 Hw/D (ft) = 0.23
Top Width (ft) = 29.00 Flow Regime = Inlet Control
Crest Width (ft) = 5.00
Elev(ft) PIPE 4(25-YR) Hw Depth(ft)
251.00 2.85
250.00 1.85
0.85
Inlet control
243.''= -0.15
247.S.: -1.15
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246.T: -2.15
245.00 -3.15
0 5 10 15 20 25 30 35 40 45 50 55 677 E 70 75 80
CircularCulvert HGL Embank
Reach(It)