SW3240204_Design Calculations_20240604

Culvert Report
Hydraflow Express Extension for Autodesk®Civil 3D®by Autodesk, Inc. Tuesday, May 7 2024
Circular Culvert
Invert Elev Dn (ft) = 513.02 Calculations
Pipe Length (ft) = 22.00 Qmin (cfs) = 28.50
Slope (%) = -0.50 Qmax (cfs) = 34.00
Invert Elev Up (ft) = 512.91 Tailwater Elev (ft) = (dc+D)/2
Rise (in) = 30.0
Shape = Circular Highlighted
Span (in) = 30.0 Qtotal (cfs) = 28.50
No. Barrels = 1 Qpipe (cfs) = 28.50
n-Value = 0.012 Qovertop (cfs) = 0.00
Culvert Type = Circular Concrete Veloc Dn (ft/s) = 6.32
Culvert Entrance = Square edge w/headwall (C) Veloc Up (ft/s) = 7.45
Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5 HGL Dn (ft) = 515.18
HGL Up (ft) = 514.73
Embankment Hw Elev (ft) = 515.93
Top Elevation (ft) = 518.70 Hw/D (ft) = 1.21
Top Width (ft) = 11.00 Flow Regime = Inlet Control
Crest Width (ft) = 20.00
Elev(It) <Name> Hw Depth(ft)
519.00 I I _ 6.09
518.00 5.09
517.00 IIi.-.....illiLkllM 4.09
516.00 ir=
.09
515.00rIIIIIIIIIIIIIIIII 2.09
514.00 1.09
513.00 0.09
512.00 -0.91
511.00 -1.91
0 5 10 15 20 25 30 35 40 45
CirculerCulvert HGL Embank
Reach(ft)