SW6231112_Design Calculations (Pipe 3)_20240117

Culvert Report
Hydraflow Express Extension for Autodesk®Civil 3D®by Autodesk, Inc. Monday,Oct 23 2023
PIPE 3 (25-YR)
Invert Elev Dn (ft) = 382.35 Calculations
Pipe Length (ft) = 45.00 Qmin (cfs) = 19.90
Slope (%) = 0.56 Qmax (cfs) = 19.90
Invert Elev Up (ft) = 382.60 Tailwater Elev (ft) = (dc+D)/2
Rise (in) = 30.0
Shape = Circular Highlighted
Span (in) = 30.0 Qtotal (cfs) = 19.90
No. Barrels = 1 Qpipe (cfs) = 19.90
n-Value = 0.013 Qovertop (cfs) = 0.00
Culvert Type = Circular Concrete Veloc Dn (ft/s) = 4.71
Culvert Entrance = Groove end projecting (C) Veloc Up (ft/s) = 6.41
Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.2 HGL Dn (ft) = 384.36
HGL Up (ft) = 384.11
Embankment Hw Elev (ft) = 384.82
Top Elevation (ft) = 386.22 Hw/D (ft) = 0.89
Top Width (ft) = 32.00 Flow Regime = Inlet Control
Crest Width (ft) = 5.00
Elev(ft) PIPE 3(25-YR) H,•,Depth lf1:
387.00 4.4D
386.00 3.40
385.00 2.40
Inlet contra
384.00 1.40
383.00 0.40
382.00 .050
1
381.00 -1.6D
0 5 10 15 20 25 3D 35 4D 45 50 55 6D 65
CircularCulvert HGL - Embank
Reach(ft)