SW6240607_Design Calculations_20240830 (11)

Culvert Report
Hydraflow Express Extension for Autodesk®Civil 3D®by Autodesk, Inc. Monday,Jun 10 2024
PIPE 7 (POST, 25-YR)
Invert Elev Dn (ft) = 290.35 Calculations
Pipe Length (ft) = 50.00 Qmin (cfs) = 68.90
Slope (%) = 0.50 Qmax (cfs) = 68.90
Invert Elev Up (ft) = 290.60 Tailwater Elev (ft) = (dc+D)/2
Rise (in) = 42.0
Shape = Circular Highlighted
Span (in) = 42.0 Qtotal (cfs) = 68.90
No. Barrels = 1 Qpipe (cfs) = 68.90
n-Value = 0.012 Qovertop (cfs) = 0.00
Culvert Type = Circular Concrete Veloc Dn (ft/s) = 7.74
Culvert Entrance = Groove end w/headwall (C) Veloc Up (ft/s) = 8.99
Coeff. K,M,c,Y,k = 0.0018, 2, 0.0292, 0.74, 0.2 HGL Dn (ft) = 293.40
HGL Up (ft) = 293.20
Embankment Hw Elev (ft) = 294.68
Top Elevation (ft) = 297.38 Hw/D (ft) = 1.17
Top Width (ft) = 20.00 Flow Regime = Inlet Control
Crest Width (ft) = 5.00
Elev(ft) PIPE 7(POST,25-YR) Hw Depth(ft)
298.00 7.40
297.00 6.40
296.00 5.40
295.00 4.40
294.00 3.40
293.00 2.40
292.00 1.40
291.00 0.40
290.00 - -0.60
289.00 - -1.60
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70
CircularCulvert HGL Embank
Reach(ft)