SW6231112_Design Calculations (Pipe 1)_20240117

Culvert Report
Hydraflow Express Extension for Autodesk®Civil 3D®by Autodesk, Inc. Monday,Oct 23 2023
PIPE 1 (25-YR)
Invert Elev Dn (ft) = 381.07 Calculations
Pipe Length (ft) = 45.00 Qmin (cfs) = 21.80
Slope (%) = 0.51 Qmax (cfs) = 21.80
Invert Elev Up (ft) = 381.30 Tailwater Elev (ft) = (dc+D)/2
Rise (in) = 30.0
Shape = Circular Highlighted
Span (in) = 30.0 Qtotal (cfs) = 21.80
No. Barrels = 1 Qpipe (cfs) = 21.80
n-Value = 0.013 Qovertop (cfs) = 0.00
Culvert Type = Circular Concrete Veloc Dn (ft/s) = 5.08
Culvert Entrance = Groove end projecting (C) Veloc Up (ft/s) = 6.64
Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.2 HGL Dn (ft) = 383.11
HGL Up (ft) = 382.89
Embankment Hw Elev (ft) = 383.65
Top Elevation (ft) = 384.88 Hw/D (ft) = 0.94
Top Width (ft) = 32.00 Flow Regime = Inlet Control
Crest Width (ft) = 5.00
Elev(ft) PIPE 1(25-YR) Hw Depth(ft)
385.00 I I I I I I 3.70
384.00 2.70
Iplet cnntrp
383.00 1.70
382.00 0.70
381.00 - - -0.30
380.00 -1.30
0 5 10 15 20 25 3D 35 4D 45 50 55 60 65
CircularCulvert HGL - Embank
Reach(ft)