SW6240607_Design Calculations_20240830 (14)

Culvert Report
Hydraflow Express Extension for Autodesk®Civil 3D®by Autodesk, Inc. Monday,Jun 10 2024
PIPE 8 (PRE, 25-YR)
Invert Elev Dn (ft) = 303.98 Calculations
Pipe Length (ft) = 61.05 Qmin (cfs) = 17.81
Slope (%) = 1.82 Qmax (cfs) = 17.81
Invert Elev Up (ft) = 305.09 Tailwater Elev (ft) = (dc+D)/2
Rise (in) = 24.0
Shape = Circular Highlighted
Span (in) = 24.0 Qtotal (cfs) = 17.81
No. Barrels = 1 Qpipe (cfs) = 17.81
n-Value = 0.012 Qovertop (cfs) = 0.00
Culvert Type = Circular Concrete Veloc Dn (ft/s) = 6.08
Culvert Entrance = Groove end projecting (C) Veloc Up (ft/s) = 6.96
Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.2 HGL Dn (ft) = 305.74
HGL Up (ft) = 306.61
Embankment Hw Elev (ft) = 307.49
Top Elevation (ft) = 311.30 Hw/D (ft) = 1.20
Top Width (ft) = 20.00 Flow Regime = Inlet Control
Crest Width (ft) = 5.00
Elev(ft) PIPE 8(PRE,25-YR) Hw Depth(It)
312.00 - 6.91
311.00 5.91
310.00 4.91
309.00 3.91
308.00 2.91
u nird
307.00 1.91
306.00 0.91
305.00- -0.09
304.00 -1.09
303.00 - -2.09
302.00 -3.09
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85
CircularCulvert HGL Embank
Reach(ft)