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Hydraulic Loss Coefficients for Culverts (2012)

Chapter: Appendix C - Outlet Control Experimental Data Set for Traditional Projecting and Slip-Lined Inlet End Treatments (Tabular Support Data for Chapter 3)

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Suggested Citation:"Appendix C - Outlet Control Experimental Data Set for Traditional Projecting and Slip-Lined Inlet End Treatments (Tabular Support Data for Chapter 3) ." National Academies of Sciences, Engineering, and Medicine. 2012. Hydraulic Loss Coefficients for Culverts. Washington, DC: The National Academies Press. doi: 10.17226/22673.
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Page 103
Page 104
Suggested Citation:"Appendix C - Outlet Control Experimental Data Set for Traditional Projecting and Slip-Lined Inlet End Treatments (Tabular Support Data for Chapter 3) ." National Academies of Sciences, Engineering, and Medicine. 2012. Hydraulic Loss Coefficients for Culverts. Washington, DC: The National Academies Press. doi: 10.17226/22673.
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Page 104

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103 A p p e n d i x C Outlet Control Experimental Data Set for Traditional Projecting and Slip-Lined Inlet End Treatments (Tabular Support Data for Chapter 3) Table C-1. Circular culvert outlet control performance data: thin-wall projecting end. Run Entrance Approach Control So Q Re Hw/D ke [%] [cfs] [] [] [] 1 projecting ponded outlet 0.07 2.88 207,576 3.82 0.79 2 projecting ponded outlet 0.07 2.66 189,737 3.17 0.78 3 projecting ponded outlet 0.07 1.20 86,589 1.26 0.83 4 projecting ponded outlet 0.07 1.19 70,578 0.95 0.75 5 projecting ponded outlet -0.06 3.08 238,220 3.89 0.79 6 projecting ponded outlet -0.06 2.18 169,241 1.90 0.82 7 projecting ponded outlet -0.06 2.26 175,716 2.43 0.80 8 projecting ponded outlet -0.06 2.92 228,997 3.40 0.78 9 projecting ponded outlet -0.06 0.90 69,761 0.67 0.71 10 projecting ponded outlet -0.06 0.56 56,334 0.52 0.75 Table C-2. Slip-lined circular culvert outlet control performance data: 2-inch projecting end. Run Entrance Approach Control So Q Re Hw/D ke [%] [cfs] [] [] [] 11 2-inch projecting ponded outlet -0.06 2.87 225,178 3.65 0.75 12 2-inch projecting ponded outlet -0.06 2.83 232,482 3.06 0.77 13 2-inch projecting ponded outlet -0.06 2.65 218,633 2.50 0.76 14 2-inch projecting ponded outlet -0.06 2.40 198,100 1.94 0.78 15 2-inch projecting ponded outlet -0.06 2.13 175,176 1.49 0.78 16 2-inch projecting ponded outlet -0.06 1.59 100,877 1.01 0.71 17 2-inch projecting ponded outlet -0.06 1.17 80,539 0.79 0.66 18 2-inch projecting ponded outlet -0.06 0.53 56,514 0.50 0.68

104 Table C-3. Slip-lined circular culvert outlet control performance data: 4-inch projecting end. Run Entrance Approach Control So Q Re Hw/D ke [%] [cfs] [] [] [] 19 4-inch projecting ponded outlet 0.03 2.34 168,709 2.37 0.77 20 4-inch projecting ponded outlet 0.03 2.18 157,278 1.77 0.79 21 4-inch projecting ponded outlet 0.03 1.89 136,830 1.32 0.80 22 4-inch projecting ponded outlet 0.03 1.65 97,989 1.02 0.77 23 4-inch projecting ponded outlet 0.03 2.86 205,944 4.19 0.76 24 4-inch projecting ponded outlet 0.03 2.69 193,137 3.42 0.76 25 4-inch projecting ponded outlet 0.03 2.51 180,313 2.77 0.78 26 4-inch projecting ponded outlet 0.03 1.19 72,470 0.85 0.73 27 4-inch projecting ponded outlet 0.03 0.92 68,119 0.66 0.66 28 4-inch projecting ponded outlet 0.03 0.44 41,620 0.45 0.69 Table C-4. Slip-lined circular culvert outlet control performance data: 2-inch tapered, projecting end. Run Entrance Approach Control So Q Re Hw/D ke [%] [cfs] [] [] [] 29 2-inch tapered proj. ponded outlet -0.06 3.08 241,753 3.94 0.70 30 2-inch tapered proj. ponded outlet -0.06 2.80 216,816 3.02 0.69 31 2-inch tapered proj. ponded outlet -0.06 2.60 200,177 2.46 0.69 32 2-inch tapered proj. ponded outlet -0.06 2.39 185,157 1.96 0.72 33 2-inch tapered proj. ponded outlet -0.06 1.20 85,493 0.80 0.71 34 2-inch tapered proj. ponded outlet -0.06 0.54 56,958 0.50 0.68 35 2-inch tapered proj. ponded outlet -0.06 1.19 98,551 1.39 0.73 Table C-5. Slip-lined circular culvert outlet control performance data: 4-inch tapered projecting end. Run Entrance Approach Control So Q Re Hw/D ke [%] [cfs] [] [] [] 36 4-inch tapered proj. ponded outlet 0.03 3.00 225,301 4.27 0.68 37 4-inch tapered proj. ponded outlet 0.03 2.86 217,791 3.57 0.68 38 4-inch tapered proj. ponded outlet 0.03 2.59 196,854 2.76 0.70 39 4-inch tapered proj. ponded outlet 0.03 2.43 189,391 1.95 0.71 40 4-inch tapered proj. ponded outlet 0.03 2.27 172,335 1.39 0.71 41 4-inch tapered proj. ponded outlet 0.03 1.14 75,812 0.77 0.62 42 4-inch tapered proj. ponded outlet 0.03 0.81 64,326 0.61 0.61 43 4-inch tapered proj. ponded outlet 0.03 0.48 45,319 0.46 0.62 44 4-inch tapered proj. ponded outlet 0.03 1.94 122,401 1.12 0.68

Next: Appendix D - Inlet Control Experimental Data Set for Traditional Projecting and Slip-Lined Inlet End Treatments (Tabular Support Data for Chapter 3) »
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TRB’s National Cooperative Highway Research Program (NCHRP) Report 734: Hydraulic Loss Coefficients for Culverts explores culvert designs that maintain natural velocities and minimize turbulence to allow migratory species to pass through the culvert barrel.

The report describes the refinement of existing hydraulic relationships and the development of new ones for analysis and design of culverts for conventional and nontraditional, environmentally sensitive installations.

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