SW6240607_Design Calculations_20240830 (13)

Culvert Report
Hydraflow Express Extension for Autodesk®Civil 3D®by Autodesk, Inc. Monday,Jun 10 2024
PIPE 8 (POST, 25-YR)
Invert Elev Dn (ft) = 303.98 Calculations
Pipe Length (ft) = 61.05 Qmin (cfs) = 22.90
Slope (%) = 1.82 Qmax (cfs) = 22.90
Invert Elev Up (ft) = 305.09 Tailwater Elev (ft) = (dc+D)/2
Rise (in) = 30.0
Shape = Circular Highlighted
Span (in) = 30.0 Qtotal (cfs) = 22.90
No. Barrels = 1 Qpipe (cfs) = 22.90
n-Value = 0.012 Qovertop (cfs) = 0.00
Culvert Type = Circular Concrete Veloc Dn (ft/s) = 5.28
Culvert Entrance = Groove end projecting (C) Veloc Up (ft/s) = 6.77
Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.2 HGL Dn (ft) = 306.04
HGL Up (ft) = 306.72
Embankment Hw Elev (ft) = 307.50
Top Elevation (ft) = 311.30 Hw/D (ft) = 0.97
Top Width (ft) = 20.00 Flow Regime = Inlet Control
Crest Width (ft) = 5.00
Elev(ft) PIPE 8(POST,25-YR) Hw Depth(It)
312.00 l 6.91
311.00 5.91
310.00 4.91
309.00 _ 3.91
308.00 . 2.91
:u nfrd
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)