SW6231112_Design Calculations (Pipe 9)_20240117

Culvert Report
Hydraflow Express Extension for Autodesk®Civil 3D®by Autodesk, Inc. Monday,Oct 23 2023
PIPE 9 (25-YR)
Invert Elev Dn (ft) = 393.20 Calculations
Pipe Length (ft) = 44.00 Qmin (cfs) = 12.17
Slope (%) = 0.57 Qmax (cfs) = 12.17
Invert Elev Up (ft) = 393.45 Tailwater Elev (ft) = (dc+D)/2
Rise (in) = 24.0
Shape = Circular Highlighted
Span (in) = 24.0 Qtotal (cfs) = 12.17
No. Barrels = 1 Qpipe (cfs) = 12.17
n-Value = 0.013 Qovertop (cfs) = 0.00
Culvert Type = Circular Concrete Veloc Dn (ft/s) = 4.45
Culvert Entrance = Groove end projecting (C) Veloc Up (ft/s) = 5.88
Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.2 HGL Dn (ft) = 394.83
HGL Up (ft) = 394.70
Embankment Hw Elev (ft) = 395.30
Top Elevation (ft) = 396.48 Hw/D (ft) = 0.93
Top Width (ft) = 32.00 Flow Regime = Inlet Control
Crest Width (ft) = 5.00
Elev(ft) PIPE 9(25-YR) Hw Depth ln,
397.00 3.55
396.00 • — 2.55
Inlet control
-- -- 1.55
394.C.: • 0.55
393.:;: • - -0.45
392.0. 1 -1.45
0 5 10 15 20 25 3D 35 4D 45 50 55 60 65
CircularCulvert HGL - Embank
Reach(ft)