SW6240607_Design Calculations_20240830 (12)

Culvert Report
Hydraflow Express Extension for Autodesk®Civil 3D®by Autodesk, Inc. Monday,Jun 10 2024
PIPE 7 (PRE, 25-YR)
Invert Elev Dn (ft) = 292.00 Calculations
Pipe Length (ft) = 40.88 Qmin (cfs) = 51.50
Slope (%) = 1.59 Qmax (cfs) = 51.50
Invert Elev Up (ft) = 292.65 Tailwater Elev (ft) = (dc+D)/2
Rise (in) = 15.0
Shape = Circular Highlighted
Span (in) = 15.0 Qtotal (cfs) = 51.50
No. Barrels = 1 Qpipe (cfs) = 16.92
n-Value = 0.012 Qovertop (cfs) = 34.58
Culvert Type = Circular Concrete Veloc Dn (ft/s) = 13.79
Culvert Entrance = Groove end projecting (C) Veloc Up (ft/s) = 13.79
Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.2 HGL Dn (ft) = 293.25
HGL Up (ft) = 295.58
Embankment Hw Elev (ft) = 299.53
Top Elevation (ft) = 297.80 Hw/D (ft) = 5.50
Top Width (ft) = 20.00 Flow Regime = Inlet Control
Crest Width (ft) = 5.00
Elev(ft) PIPE 7(PRE.25-YR) Hw Depth(ft)
300.00 I I I 7.35
Inletconlyd
299.00 - 6.35
298.00 5.35
297.00 4.35
296.00 3.35
295.00 2.35
294.00 1.35
293.00 0.35
292.00 - -0.65
291.00 t -1.65
0 5 10 15 20 25 3D 35 4D 45 60 55 6D 65
CircularCulvert HGL - Embank
Reach Si(