SW6231112_Design Calculations (Pipe 8)_20240117

Culvert Report
Hydraflow Express Extension for Autodesk®Civil 3D®by Autodesk, Inc. Monday,Oct 23 2023
PIPE 8 (25-YR)
Invert Elev Dn (ft) = 394.25 Calculations
Pipe Length (ft) = 40.00 Qmin (cfs) = 7.98
Slope (%) = 0.50 Qmax (cfs) = 7.98
Invert Elev Up (ft) = 394.45 Tailwater Elev (ft) = (dc+D)/2
Rise (in) = 18.0
Shape = Circular Highlighted
Span (in) = 18.0 Qtotal (cfs) = 7.98
No. Barrels = 1 Qpipe (cfs) = 7.98
n-Value = 0.013 Qovertop (cfs) = 0.00
Culvert Type = Circular Concrete Veloc Dn (ft/s) = 4.91
Culvert Entrance = Groove end projecting (C) Veloc Up (ft/s) = 5.78
Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.2 HGL Dn (ft) = 395.55
HGL Up (ft) = 395.54
Embankment Hw Elev (ft) = 396.15
Top Elevation (ft) = 396.95 Hw/D (ft) = 1.13
Top Width (ft) = 32.00 Flow Regime = Inlet Control
Crest Width (ft) = 5.00
Elev(ft) PIPE 8(25-YR) Hw Depth(ft)
397.00 2.55
396.50 2.05
Inlet contrd
396.00 1.55
395.50 1.05
395.00 0.55
394.50 0.05
394.00 -0.45
393.50 -0.95
0 5 10 15 20 25 30 35 40 46 50 55 60
Circular Culvert HGL Embank
Reach(ft)