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108 A p p e n d i x e Single and Multibarrel Culvert Experimental Data Sets (Tabular Support Data for Chapter 5)
Table E-1. Single-barrel culvert experimental data. (continued on next page) Run Barrel Approach Q Q Q Q So Hw/D Hw/D Hw/D Spacing Condition Barrel total Left Middle Right Left Middle Right Q/AD0.5 Hw/D-Hc/D+.5So (Q/AD0.5)2 Hw/D+.5So [ ] [ ] [ ] [ ] [cfs] [cfs] [cfs] [cfs] [%] [ ] [ ] [ ] [ft0.5/s] [ ] [ft/s2] [ ] 1 3D Reservoir Right 0.08 N/A N/A 0.08 2.750 N/A N/A 0.304 0.314 0.042 0.098 0.318 2 3D Reservoir Right 0.54 N/A N/A 0.55 2.750 N/A N/A 0.856 2.044 0.116 4.178 0.870 3 3D Reservoir Right 0.39 N/A N/A 0.39 2.750 N/A N/A 0.715 1.467 0.104 2.152 0.729 4 3D Reservoir Right 0.76 N/A N/A 0.76 2.750 N/A N/A 1.086 2.852 0.183 8.135 1.100 5 3D Reservoir Right 1.10 N/A N/A 1.09 2.750 N/A N/A 1.501 4.092 0.364 16.747 1.515 6 3D Reservoir Right 1.26 N/A N/A 1.26 2.750 N/A N/A 1.742 4.696 0.491 22.053 1.756 7 3D Reservoir Right 1.57 N/A N/A 1.57 2.750 N/A N/A 2.312 5.860 0.831 34.341 2.325 8 3D Reservoir Right 1.86 N/A N/A 1.87 2.750 N/A N/A 3.074 7.003 1.347 49.044 3.088 9 3D Reservoir Right 2.23 N/A N/A 2.22 2.750 N/A N/A 4.147 8.292 - 68.749 4.161 10 3D Reservoir Left 0.08 N/A 0.08 N/A 2.494 N/A 0.315 N/A 0.309 0.055 0.096 0.328 11 3D Reservoir Left 0.39 N/A 0.39 N/A 2.494 N/A 0.719 N/A 1.459 0.108 2.129 0.732 12 3D Reservoir Left 0.54 N/A 0.55 N/A 2.494 N/A 0.867 N/A 2.044 0.125 4.177 0.879 13 3D Reservoir Left 0.76 N/A 0.77 N/A 2.494 N/A 1.090 N/A 2.869 0.182 8.229 1.102 14 3D Reservoir Left 1.10 N/A 1.11 N/A 2.494 N/A 1.527 N/A 4.163 0.375 17.331 1.539 15 3D Reservoir Left 1.26 N/A 1.28 N/A 2.494 N/A 1.785 N/A 4.779 0.516 22.836 1.797 16 3D Reservoir Left 1.57 N/A 1.60 N/A 2.494 N/A 2.386 N/A 5.964 0.883 35.573 2.398 17 3D Reservoir Left 1.87 N/A 1.88 N/A 2.494 N/A 3.131 N/A 7.030 1.396 49.423 3.143 18 3D Reservoir Left 2.23 N/A 2.22 N/A 2.494 N/A 4.169 N/A 8.283 - 68.616 4.182 19 3D Reservoir Left 0.08 0.08 N/A N/A 2.224 0.3244 N/A N/A 0.313 0.061 0.098 0.336 20 3D Reservoir Left 0.54 0.55 N/A N/A 2.224 0.8911 N/A N/A 2.059 0.145 4.237 0.902 21 3D Reservoir Left 0.39 0.39 N/A N/A 2.224 0.7398 N/A N/A 1.465 0.126 2.147 0.751 22 3D Reservoir Left 0.76 0.76 N/A N/A 2.224 1.1027 N/A N/A 2.843 0.199 8.080 1.114 23 3D Reservoir Left 1.10 1.10 N/A N/A 2.224 1.5515 N/A N/A 4.126 0.405 17.026 1.563 24 3D Reservoir Left 1.26 1.26 N/A N/A 2.224 1.8233 N/A N/A 4.721 0.564 22.287 1.834 25 3D Reservoir Left 1.57 1.57 N/A N/A 2.224 2.3926 N/A N/A 5.857 0.910 34.310 2.404 26 3D Reservoir Left 1.90 1.90 N/A N/A 2.224 3.2068 N/A N/A 7.117 1.450 50.646 3.218 27 3D Reservoir Left 2.29 2.27 N/A N/A 2.224 4.3095 N/A N/A 8.482 - 71.936 4.321 28 1.5D Reservoir Right 0.08 N/A N/A 0.08 2.511 N/A N/A 0.299 0.306 0.040 0.093 0.311 29 1.5D Reservoir Right 0.26 N/A N/A 0.26 2.511 N/A N/A 0.571 0.986 0.080 0.972 0.583 30 1.5D Reservoir Right 0.40 N/A N/A 0.39 2.511 N/A N/A 0.718 1.462 0.106 2.138 0.731 31 1.5D Reservoir Right 0.56 N/A N/A 0.56 2.511 N/A N/A 0.888 2.080 0.139 4.327 0.901 32 1.5D Reservoir Right 0.76 N/A N/A 0.75 2.511 N/A N/A 1.087 2.793 0.194 7.804 1.100 33 1.5D Reservoir Right 1.10 N/A N/A 1.10 2.511 N/A N/A 1.506 4.111 0.364 16.899 1.519 34 1.5D Reservoir Right 1.26 N/A N/A 1.25 2.511 N/A N/A 1.741 4.686 0.490 21.958 1.754 35 1.5D Reservoir Right 1.41 N/A N/A 1.40 2.511 N/A N/A 2.001 5.246 0.643 27.517 2.014 36 1.5D Reservoir Right 1.57 N/A N/A 1.57 2.511 N/A N/A 2.353 5.860 0.871 34.341 2.365 37 1.5D Reservoir Right 1.94 N/A N/A 1.91 2.511 N/A N/A 3.233 7.151 1.471 51.135 3.246 38 1.5D Reservoir Left 0.08 N/A 0.08 N/A 2.525 N/A 0.308 N/A 0.313 0.045 0.098 0.320 39 1.5D Reservoir Left 0.26 N/A 0.26 N/A 2.525 N/A 0.577 N/A 0.987 0.086 0.974 0.590 40 1.5D Reservoir Left 0.40 N/A 0.39 N/A 2.525 N/A 0.718 N/A 1.454 0.108 2.115 0.731 41 1.5D Reservoir Left 0.56 N/A 0.56 N/A 2.525 N/A 0.887 N/A 2.087 0.137 4.354 0.900 42 1.5D Reservoir Left 0.76 N/A 0.75 N/A 2.525 N/A 1.085 N/A 2.816 0.188 7.930 1.097 43 1.5D Reservoir Left 1.10 N/A 1.10 N/A 2.525 N/A 1.519 N/A 4.125 0.375 17.012 1.532 44 1.5D Reservoir Left 1.26 N/A 1.25 N/A 2.525 N/A 1.772 N/A 4.684 0.522 21.942 1.784
Table E-1. (Continued). Run Barrel Approach Q Q Q Q So Hw/D Hw/D Hw/D Spacing Condition Barrel total Left Middle Right Left Middle Right Q/AD0.5 Hw/D-Hc/D+.5So (Q/AD 0.5)2 Hw/D+.5So [ ] [ ] [ ] [ ] [cfs] [cfs] [cfs] [cfs] [%] [ ] [ ] [ ] [ft0.5/s] [ ] [ft/s2] [ ] 45 1.5D Reservoir Left 1.41 N/A 1.40 N/A 2.525 N/A 2.019 N/A 5.225 0.665 27.300 2.032 46 1.5D Reservoir Left 1.57 N/A 1.56 N/A 2.525 N/A 2.372 N/A 5.818 0.899 33.853 2.384 47 1.5D Reservoir Left 1.94 N/A 1.92 N/A 2.525 N/A 3.254 N/A 7.182 1.484 51.588 3.266 48 1.5D Reservoir Left 0.08 0.08 N/A N/A 2.470 0.3052 N/A N/A 0.305 0.046 0.093 0.318 49 1.5D Reservoir Left 0.40 0.40 N/A N/A 2.470 0.7232 N/A N/A 1.500 0.102 2.249 0.736 50 1.5D Reservoir Left 0.56 0.57 N/A N/A 2.470 0.8963 N/A N/A 2.137 0.135 4.569 0.909 51 1.5D Reservoir Left 0.76 0.76 N/A N/A 2.470 1.0912 N/A N/A 2.857 0.186 8.163 1.104 52 1.5D Reservoir Left 0.26 0.27 N/A N/A 2.470 0.5821 N/A N/A 1.019 0.082 1.039 0.594 53 1.5D Reservoir Left 1.10 1.11 N/A N/A 2.470 1.5233 N/A N/A 4.163 0.371 17.331 1.536 54 1.5D Reservoir Left 1.26 1.26 N/A N/A 2.470 1.7707 N/A N/A 4.711 0.515 22.192 1.783 55 1.5D Reservoir Left 1.57 1.58 N/A N/A 2.470 2.3798 N/A N/A 5.892 0.891 34.715 2.392 56 1.5D Reservoir Left 1.92 1.95 N/A N/A 2.470 3.2658 N/A N/A 7.274 1.474 52.907 3.278 57 1.5D Reservoir Left 1.41 1.41 N/A N/A 2.470 2.0208 N/A N/A 5.280 0.655 27.883 2.033 58 2D, 1.5D Dep. Trapezoid Right 0.09 N/A N/A 0.08 2.886 N/A N/A 0.296 0.294 0.044 0.087 0.311 59 2D, 1.5D Dep. Trapezoid Left 0.09 N/A 0.08 N/A 2.544 N/A 0.295 N/A 0.302 0.038 0.091 0.308 60 2D, 1.5D Dep. Trapezoid Left 0.26 N/A 0.26 N/A 2.544 N/A 0.560 N/A 0.975 0.072 0.951 0.573 61 2D, 1.5D Dep. Trapezoid Left 0.40 N/A 0.41 N/A 2.544 N/A 0.708 N/A 1.519 0.083 2.308 0.720 62 2D, 1.5D Dep. Trapezoid Left 0.58 N/A 0.57 N/A 2.544 N/A 0.872 N/A 2.149 0.109 4.619 0.885 63 2D, 1.5D Dep. Trapezoid Left 0.76 N/A 0.77 N/A 2.544 N/A 1.044 N/A 2.884 0.133 8.316 1.056 64 2D, 1.5D Dep. Trapezoid Left 1.11 N/A 1.13 N/A 2.544 N/A 1.454 N/A 4.241 0.288 17.982 1.467 65 2D, 1.5D Dep. Trapezoid Left 1.26 N/A 1.28 N/A 2.544 N/A 1.673 N/A 4.789 0.403 22.937 1.686 66 2D, 1.5D Dep. Trapezoid Left 1.42 N/A 1.46 N/A 2.544 N/A 1.977 N/A 5.476 0.573 29.982 1.990 67 2D, 1.5D Dep. Trapezoid Left 1.59 N/A 1.61 N/A 2.544 N/A 2.297 N/A 6.026 0.782 36.311 2.310 68 2D, 1.5D Dep. Trapezoid Left 1.94 N/A 1.94 N/A 2.544 N/A 3.223 N/A 7.267 1.434 52.803 3.236 69 2D, 1.5D Dep. Trapezoid Left 0.09 0.08 N/A N/A 2.625 0.3026 N/A N/A 0.309 0.043 0.095 0.316 70 2D, 1.5D Dep. Trapezoid Left 0.27 0.27 N/A N/A 2.625 0.5655 N/A N/A 1.004 0.070 1.007 0.579 71 2D, 1.5D Dep. Trapezoid Left 0.40 0.40 N/A N/A 2.625 0.7155 N/A N/A 1.500 0.095 2.249 0.729 72 2D, 1.5D Dep. Trapezoid Left 0.56 0.56 N/A N/A 2.625 0.8719 N/A N/A 2.101 0.119 4.413 0.885 73 2D, 1.5D Dep. Trapezoid Left 0.76 0.77 N/A N/A 2.625 1.0719 N/A N/A 2.872 0.164 8.247 1.085 74 2D, 1.5D Dep. Trapezoid Left 1.11 1.11 N/A N/A 2.625 1.4810 N/A N/A 4.163 0.329 17.331 1.494 75 2D, 1.5D Dep. Trapezoid Left 1.24 1.24 N/A N/A 2.625 1.6797 N/A N/A 4.641 0.438 21.542 1.693 76 2D, 1.5D Dep. Trapezoid Left 1.43 1.42 N/A N/A 2.625 2.0067 N/A N/A 5.324 0.633 28.340 2.020 77 2D, 1.5D Dep. Trapezoid Left 1.59 1.62 N/A N/A 2.625 2.3388 N/A N/A 6.043 0.820 36.515 2.352 78 2D, 1.5D Dep. Trapezoid Left 1.94 1.94 N/A N/A 2.625 3.2414 N/A N/A 7.261 1.453 52.716 3.255 79 3D, 1.5D Dep. Trapezoid Left 1.41 N/A 1.44 N/A 2.444 N/A 1.972 N/A 5.384 0.586 28.982 1.984 80 3D, 1.5D Dep. Trapezoid Left 1.25 N/A 1.29 N/A 2.444 N/A 1.685 N/A 4.810 0.410 23.140 1.697 81 3D, 1.5D Dep. Trapezoid Left 1.41 1.40 N/A N/A 2.440 2.0336 N/A N/A 5.227 0.678 27.321 2.046
Table E-2. Double-barrel culvert experimental data. Barrel Approach Q Q Q Q So So So Hw/D Hw/D Hw/D ataD lerraB-thgiR ataD lerraB-elddiM ataD lerraB-tfeL Run Spacing Condition Barrels total Left Mid. Right Left Mid. Right Left Mid. Right Q/AD0.5 Hw/D- Hc/D+.5So (Q/AD0.5)2 Hw/D+.5So Q/AD0.5 Hw/D- Hc/D+.5So (Q/AD0.5)2 Hw/D+.5So Q/AD0.5 Hw/D- Hc/D+.5So (Q/AD0.5)2 Hw/D+.5So [ ] [ ] [ ] [] [cfs] [cfs] [cfs] [cfs] [%] [%] [%] [ ] [ ] [ ] [ft0.5/s] [ ] [ft/s2] [ ] [ft0.5/s] [ ] [ft/s2] [ ] [ft0.5/s] [ ] [ft/s2] [ ] 82 1.5D Reservoir Left, Mid. 0.18 N/A 0.09 0.08 N/A 2.53 2.51 N/A 0.322 0.305 N/A N/A N/A N/A 0.340 0.047 0.116 0.334 0.311 0.044 0.096 0.318 83 1.5D Reservoir Left, Mid. 0.53 N/A 0.26 0.25 N/A 2.53 2.51 N/A 0.581 0.564 N/A N/A N/A N/A 0.976 0.093 0.953 0.593 0.951 0.083 0.904 0.577 84 1.5D Reservoir Left, Mid. 0.80 N/A 0.40 0.39 N/A 2.53 2.51 N/A 0.736 0.719 N/A N/A N/A N/A 1.482 0.119 2.196 0.749 1.470 0.105 2.162 0.732 85 1.5D Reservoir Left, Mid. 1.15 N/A 0.56 0.57 N/A 2.53 2.51 N/A 0.906 0.890 N/A N/A N/A N/A 2.087 0.156 4.357 0.919 2.115 0.133 4.474 0.902 86 1.5D Reservoir Left, Mid. 1.61 N/A 0.77 0.82 N/A 2.53 2.51 N/A 1.147 1.131 N/A N/A N/A N/A 2.860 0.242 8.181 1.160 3.067 0.185 9.406 1.143 87 1.5D Reservoir Mid., Right 2.21 1.04 1.11 N/A 2.47 2.53 N/A 1.509 1.514 N/A 3.873 0.411 15.003 1.522 4.146 0.365 17.189 1.527 N/A N/A N/A N/A 88 1.5D Reservoir Mid., Right 2.21 1.08 1.09 N/A 2.47 2.53 N/A 1.517 1.522 N/A 4.053 0.385 16.425 1.529 4.089 0.384 16.717 1.534 N/A N/A N/A N/A 89 1.5D Reservoir Left, Mid. 2.21 N/A 1.06 1.14 N/A 2.53 2.51 N/A 1.519 1.503 N/A N/A N/A N/A 3.948 0.408 15.584 1.532 4.244 0.335 18.011 1.515 90 1.5D Reservoir Left, Mid. 2.52 N/A 1.23 1.29 N/A 2.53 2.51 N/A 1.774 1.758 N/A N/A N/A N/A 4.594 0.541 21.103 1.787 4.811 0.483 23.145 1.770 91 1.5D Reservoir Left, Mid. 2.82 N/A 1.35 1.47 N/A 2.53 2.51 N/A 2.036 2.019 N/A N/A N/A N/A 5.063 0.713 25.636 2.049 5.483 0.614 30.060 2.032 92 1.5D Reservoir Mid., Right 2.82 1.40 1.40 N/A 2.47 2.53 N/A 2.035 2.040 N/A 5.217 0.682 27.220 2.047 5.242 0.682 27.478 2.052 N/A N/A N/A N/A 93 1.5D Reservoir Left, Mid. 3.12 N/A 1.54 1.60 N/A 2.53 2.51 N/A 2.345 2.328 N/A N/A N/A N/A 5.756 0.885 33.137 2.357 5.980 0.822 35.757 2.341 94 1.5D Reservoir Mid., Right 3.81 1.92 1.87 N/A 2.47 2.53 N/A 3.152 3.156 N/A 7.173 1.383 51.451 3.164 7.004 1.428 49.049 3.169 N/A N/A N/A N/A 95 1.5D Reservoir Left, Mid. 3.78 N/A 1.88 1.91 N/A 2.53 2.51 N/A 3.153 3.136 N/A N/A N/A N/A 7.017 1.421 49.245 3.165 7.144 1.375 51.043 3.148 96 1.5D Reservoir Left, Mid. 3.76 N/A 1.88 1.96 N/A 2.53 2.51 N/A 3.229 3.213 N/A N/A N/A N/A 7.031 1.495 49.441 3.242 7.310 1.413 53.443 3.225 97 3D Reservoir Mid., Right 2.54 1.25 1.27 N/A 2.44 2.44 N/A 1.775 1.783 N/A 4.661 0.528 21.728 1.787 4.761 0.518 22.666 1.796 N/A N/A N/A N/A 98 3D Reservoir Mid., Right 3.51 1.74 1.74 N/A 2.44 2.44 N/A 2.785 2.794 N/A 6.489 1.170 42.101 2.797 6.489 1.179 42.103 2.806 N/A N/A N/A N/A 99 3D Reservoir Mid., Right 2.84 1.42 1.42 N/A 2.44 2.44 N/A 2.058 2.067 N/A 5.314 0.686 28.237 2.070 5.299 0.698 28.076 2.079 N/A N/A N/A N/A 100 3D Reservoir Left, Mid. 0.15 N/A 0.08 0.08 N/A 2.44 2.43 N/A 0.308 0.291 N/A N/A N/A N/A 0.288 0.057 0.083 0.320 0.286 0.041 0.082 0.303 101 3D Reservoir Left, Mid. 0.53 N/A 0.26 0.27 N/A 2.44 2.43 N/A 0.588 0.572 N/A N/A N/A N/A 0.961 0.104 0.924 0.601 0.994 0.078 0.987 0.584 102 3D Reservoir Left, Mid. 0.80 N/A 0.39 0.41 N/A 2.44 2.43 N/A 0.741 0.724 N/A N/A N/A N/A 1.467 0.128 2.153 0.753 1.516 0.100 2.297 0.737 103 3D Reservoir Left, Mid. 1.14 N/A 0.55 0.58 N/A 2.44 2.43 N/A 0.913 0.896 N/A N/A N/A N/A 2.057 0.168 4.231 0.925 2.172 0.128 4.717 0.908 104 3D Reservoir Left, Mid. 1.65 N/A 0.80 0.83 N/A 2.44 2.43 N/A 1.167 1.150 N/A N/A N/A N/A 3.005 0.233 9.029 1.179 3.099 0.198 9.602 1.162 105 3D Reservoir Left, Mid. 2.20 N/A 1.08 1.12 N/A 2.44 2.43 N/A 1.517 1.500 N/A N/A N/A N/A 4.051 0.385 16.408 1.529 4.196 0.342 17.602 1.512 106 3D Reservoir Left, Mid. 2.54 N/A 1.24 1.33 N/A 2.44 2.43 N/A 1.795 1.778 N/A N/A N/A N/A 4.646 0.552 21.581 1.807 4.971 0.473 24.709 1.790 107 3D Reservoir Left, Mid. 3.79 N/A 1.86 1.92 N/A 2.44 2.43 N/A 3.181 3.164 N/A N/A N/A N/A 6.934 1.468 48.082 3.193 7.158 1.399 51.239 3.176 108 3D Reservoir Left, Mid. 3.11 N/A 1.55 1.58 N/A 2.44 2.43 N/A 2.324 2.308 N/A N/A N/A N/A 5.781 0.859 33.416 2.337 5.895 0.819 34.749 2.320 110 2D Reservoir Left, Mid. 2.81 N/A 1.39 1.45 N/A 2.52 2.28 N/A 2.003 2.012 N/A N/A N/A N/A 5.208 0.652 27.125 2.015 5.437 0.614 29.560 2.023 111 2D Reservoir Mid., Right 0.16 0.08 0.08 N/A 2.42 2.52 N/A 0.306 0.297 N/A 0.310 0.045 0.096 0.319 0.305 0.039 0.093 0.310 N/A N/A N/A N/A 112 2D Reservoir Mid., Right 0.52 0.26 0.26 N/A 2.42 2.52 N/A 0.574 0.565 N/A 0.988 0.082 0.976 0.587 0.965 0.080 0.931 0.578 N/A N/A N/A N/A 113 2D Reservoir Mid., Right 0.81 0.40 0.40 N/A 2.42 2.52 N/A 0.731 0.722 N/A 1.494 0.111 2.232 0.743 1.507 0.099 2.270 0.734 N/A N/A N/A N/A 114 2D Reservoir Mid., Right 1.14 0.56 0.57 N/A 2.42 2.52 N/A 0.900 0.891 N/A 2.100 0.146 4.409 0.912 2.124 0.133 4.512 0.904 N/A N/A N/A N/A 115 2D Reservoir Mid., Right 1.63 0.78 0.83 N/A 2.42 2.52 N/A 1.149 1.140 N/A 2.930 0.229 8.584 1.161 3.099 0.188 9.601 1.152 N/A N/A N/A N/A 116 2D Reservoir Mid., Right 2.18 1.08 1.11 N/A 2.42 2.52 N/A 1.492 1.483 N/A 4.026 0.366 16.205 1.505 4.146 0.335 17.189 1.496 N/A N/A N/A N/A 117 2D Reservoir Mid., Right 2.57 1.27 1.30 N/A 2.42 2.52 N/A 1.796 1.787 N/A 4.731 0.536 22.384 1.808 4.867 0.502 23.691 1.800 N/A N/A N/A N/A 118 2D Reservoir Mid., Right 2.81 1.38 1.42 N/A 2.42 2.52 N/A 2.028 2.019 N/A 5.175 0.683 26.778 2.041 5.299 0.651 28.076 2.032 N/A N/A N/A N/A 119 2D Reservoir Mid., Right 3.18 1.57 1.63 N/A 2.42 2.52 N/A 2.427 2.418 N/A 5.882 0.941 34.603 2.439 6.102 0.887 37.235 2.431 N/A N/A N/A N/A 120 2D Reservoir Mid., Right 3.52 1.77 1.77 N/A 2.42 2.52 N/A 2.881 2.872 N/A 6.624 1.237 43.882 2.893 6.608 1.232 43.666 2.884 N/A N/A N/A N/A 121 2D Reservoir Mid., Right 3.76 1.87 1.88 N/A 2.42 2.52 N/A 3.194 3.185 N/A 7.004 1.464 49.057 3.206 7.031 1.450 49.441 3.197 N/A N/A N/A N/A 122 2D, 1.5D Dep Reservoir Mid., Right 0.65 0.09 0.55 N/A 2.63 2.54 N/A 0.341 0.859 N/A 0.328 0.073 0.107 0.354 2.069 0.112 4.281 0.872 N/A N/A N/A N/A 123 2D, 1.5D Dep Reservoir Mid., Right 1.02 0.24 0.78 N/A 2.63 2.54 N/A 0.549 1.067 N/A 0.912 0.079 0.832 0.562 2.905 0.152 8.441 1.079 N/A N/A N/A N/A 124 2D, 1.5D Dep Reservoir Mid., Right 1.32 0.39 0.94 N/A 2.63 2.54 N/A 0.728 1.246 N/A 1.450 0.120 2.102 0.741 3.502 0.218 12.261 1.259 N/A N/A N/A N/A 125 2D, 1.5D Dep Reservoir Mid., Right 1.60 0.56 1.04 N/A 2.63 2.54 N/A 0.863 1.381 N/A 2.075 0.115 4.308 0.876 3.901 0.278 15.221 1.393 N/A N/A N/A N/A 126 2D, 1.5D Dep Reservoir Mid., Right 1.97 0.79 1.19 N/A 2.63 2.54 N/A 1.059 1.577 N/A 2.945 0.137 8.672 1.072 4.461 0.369 19.902 1.590 N/A N/A N/A N/A 127 2D, 1.5D Dep Reservoir Mid., Right 2.56 1.11 1.44 N/A 2.63 2.54 N/A 1.475 1.992 N/A 4.154 0.325 17.252 1.488 5.379 0.608 28.933 2.005 N/A N/A N/A N/A 128 2D, 1.5D Dep Reservoir Mid., Right 2.76 1.34 1.61 N/A 2.63 2.54 N/A 1.810 2.328 N/A 5.007 0.499 25.068 1.824 6.002 0.818 36.022 2.341 N/A N/A N/A N/A 129 2D, 1.5D Dep Reservoir Mid., Right 3.19 1.47 1.69 N/A 2.63 2.54 N/A 2.050 2.568 N/A 5.499 0.642 30.242 2.063 6.332 0.988 40.094 2.581 N/A N/A N/A N/A 130 2D, 1.5D Dep Reservoir Mid., Right 3.47 1.62 1.84 N/A 2.63 2.54 N/A 2.387 2.905 N/A 6.045 0.868 36.542 2.401 6.865 1.208 47.132 2.918 N/A N/A N/A N/A
Table E-3. Three-barrel culvert experimental data set. Run Barrel Approach S Q Q o Re Hw/D Q/AD 0.5 Hw/D-Hc/D+.5So (Q/AD 0.5)2 Hw/D+.5So Spacing Condition total Left Middle Right Left Middle Right Left Middle Right Left Middle Right Left Middle Right Left Middle Right Left Middle Right [ ] [ ] [ ] [cfs] [cfs] [cfs] [cfs] [%] [%] [%] [] [ ] [ ] [ ] [ft0.5/s] [ft0.5/s] [ft0.5/s] [ ] [ ] [ ] [ft/s2] [ft/s2] [ft/s2] [ ] [ ] [ ] 131 3D Rect. chnl 4.46 1.48 1.50 1.48 2.92 2.92 2.56 183106 1.986 1.981 1.981 5.545 5.589 5.541 0.571 0.556 0.564 30.750 31.237 30.700 2.001 1.995 1.994 132 3D Rect. chnl 4.20 1.40 1.41 1.40 2.92 2.92 2.56 173222 1.827 1.822 1.822 5.230 5.287 5.226 0.474 0.457 0.467 27.349 27.956 27.315 1.842 1.836 1.835 133 3D Rect. chnl 3.46 1.13 1.19 1.17 2.92 2.92 2.56 149645 1.459 1.454 1.454 4.239 4.431 4.355 0.295 0.254 0.266 17.966 19.633 18.964 1.474 1.468 1.467 134 3D Rect. chnl 2.83 0.95 0.98 0.95 2.92 2.92 2.56 122264 1.231 1.226 1.226 3.547 3.658 3.567 0.196 0.170 0.186 12.584 13.381 12.724 1.246 1.240 1.238 135 3D Rect. chnl 1.65 0.55 0.56 0.56 2.92 2.92 2.56 81570 0.853 0.847 0.847 2.070 2.087 2.079 0.108 0.099 0.099 4.285 4.357 4.321 0.867 0.862 0.860 136 3D Rect. chnl 1.16 0.39 0.39 0.39 2.92 2.92 2.56 67509 0.691 0.686 0.686 1.450 1.472 1.464 0.084 0.074 0.074 2.103 2.167 2.143 0.706 0.700 0.699 137 3D Rect. chnl 0.72 0.24 0.24 0.24 2.92 2.92 2.56 48023 0.526 0.521 0.521 0.891 0.909 0.901 0.064 0.054 0.054 0.793 0.827 0.812 0.541 0.536 0.534 138 3D Rect. chnl 0.35 0.12 0.12 0.12 2.92 2.92 2.56 39814 0.358 0.353 0.353 0.435 0.446 0.440 0.046 0.036 0.037 0.190 0.199 0.193 0.372 0.367 0.365 139 3D 40o Skew Rect. chnl 2.88 0.95 0.97 0.95 2.70 2.82 2.83 117999 1.227 1.221 1.221 3.547 3.623 3.567 0.191 0.171 0.182 12.584 13.125 12.724 1.241 1.235 1.235 140 3D 40o Skew Rect. chnl 1.82 0.62 0.62 0.60 2.70 2.82 2.83 86671 0.916 0.909 0.909 2.307 2.328 2.241 0.121 0.110 0.128 5.321 5.418 5.022 0.929 0.923 0.923 141 3D 40o Skew Rect. chnl 1.37 0.46 0.46 0.45 2.70 2.82 2.83 72175 0.767 0.760 0.760 1.738 1.730 1.679 0.093 0.088 0.100 3.021 2.993 2.819 0.780 0.774 0.774 142 3D 40o Skew Rect. chnl 0.85 0.29 0.29 0.28 2.70 2.82 2.83 58355 0.596 0.590 0.590 1.084 1.095 1.038 0.080 0.071 0.086 1.174 1.199 1.078 0.610 0.604 0.604 143 3D 40o Skew Rect. chnl 0.50 0.16 0.18 0.16 2.70 2.82 2.83 45200 0.492 0.486 0.486 0.610 0.669 0.608 0.116 0.091 0.111 0.372 0.447 0.369 0.506 0.500 0.500 144 3D 40o Skew Rect. chnl 1.82 0.62 0.62 0.60 2.70 2.82 2.83 88982 0.917 0.910 0.910 2.307 2.328 2.241 0.122 0.112 0.129 5.321 5.418 5.022 0.930 0.924 0.924 145 3D 40o Skew Rect. chnl 0.86 0.29 0.30 0.28 2.70 2.82 2.83 43657 0.603 0.596 0.596 1.100 1.120 1.046 0.082 0.071 0.090 1.210 1.254 1.095 0.616 0.610 0.610 146 3D 40o Skew Rect. chnl 1.72 0.59 0.59 0.54 3.04 2.91 2.83 91620 0.904 0.912 0.872 2.194 2.193 2.032 0.134 0.141 0.135 4.813 4.811 4.129 0.919 0.926 0.886 147 3D 40o Skew Rect. chnl 6.16 2.06 2.06 2.04 3.04 2.91 2.83 255367 3.481 3.489 3.449 7.706 7.697 7.621 1.588 1.597 1.576 59.387 59.247 58.084 3.496 3.503 3.463 148 3D 40o Skew Rect. chnl 5.22 1.76 1.76 1.72 3.04 2.91 2.83 212711 2.694 2.702 2.662 6.599 6.560 6.446 1.059 1.074 1.059 43.540 43.039 41.547 2.709 2.716 2.676 149 3D 40o Skew Rect. chnl 4.72 1.58 1.60 1.56 3.04 2.91 2.83 190354 2.266 2.273 2.233 5.905 5.977 5.848 0.778 0.770 0.756 34.873 35.720 34.203 2.281 2.288 2.247 150 3D 40o Skew Rect. chnl 3.53 1.20 1.20 1.16 3.04 2.91 2.83 148101 1.567 1.575 1.535 4.506 4.499 4.339 0.353 0.362 0.351 20.300 20.243 18.826 1.582 1.589 1.549 151 3D 40o Skew Rect. chnl 6.85 2.30 2.30 2.27 3.04 2.91 2.83 288022 4.276 4.284 4.244 8.587 8.612 8.473 - - - 73.733 74.165 71.791 4.291 4.298 4.258 152 3D Non-unif 5.23 1.69 1.88 1.69 2.22 2.49 2.75 219200 2.779 2.715 2.660 6.330 7.016 6.321 1.198 0.984 1.084 40.066 49.230 39.949 2.790 2.728 2.674 153 3D Non-unif 4.75 1.55 1.69 1.56 2.22 2.49 2.75 196433 2.414 2.351 2.296 5.814 6.327 5.813 0.941 0.772 0.826 33.798 40.037 33.791 2.426 2.364 2.310 154 3D Non-unif 4.10 1.36 1.46 1.33 2.22 2.49 2.75 171063 1.987 1.924 1.869 5.091 5.476 4.966 0.658 0.521 0.566 25.920 29.982 24.659 1.999 1.937 1.883 155 3D Non-unif 3.46 1.13 1.25 1.09 2.22 2.49 2.75 149296 1.646 1.583 1.528 4.239 4.684 4.075 0.479 0.333 0.394 17.967 21.942 16.606 1.657 1.596 1.542 156 3D Non-unif 2.79 0.96 1.03 0.90 2.22 2.49 2.75 127731 1.334 1.271 1.215 3.582 3.862 3.350 0.289 0.175 0.217 12.829 14.917 11.222 1.345 1.283 1.229 157 3D Non-unif 1.85 0.62 0.63 0.57 2.22 2.49 2.75 91131 1.013 0.950 0.895 2.302 2.363 2.129 0.217 0.142 0.137 5.297 5.585 4.533 1.024 0.962 0.909 158 3D Non-unif 2.38 0.79 0.82 0.78 2.22 2.49 2.75 110156 1.212 1.149 1.094 2.947 3.077 2.912 0.288 0.201 0.179 8.684 9.470 8.478 1.223 1.161 1.107 159 3D Non-unif 1.35 0.47 0.47 0.41 2.22 2.49 2.75 78004 0.853 0.790 0.735 1.750 1.775 1.537 0.173 0.106 0.106 3.063 3.151 2.361 0.864 0.802 0.748 160 3D Non-unif 0.87 0.31 0.30 0.25 2.22 2.49 2.75 59888 0.673 0.610 0.555 1.172 1.129 0.952 0.131 0.081 0.075 1.373 1.275 0.906 0.684 0.623 0.569 161 3D Non-unif 0.52 0.20 0.18 0.14 2.22 2.49 2.75 45637 0.524 0.462 0.406 0.752 0.673 0.541 0.100 0.064 0.054 0.565 0.452 0.293 0.536 0.474 0.420 162 1.5D Reservoir 2.07 0.64 0.74 0.68 2.47 2.53 2.51 103880 1.022 1.027 1.010 2.392 2.749 2.525 0.208 0.143 0.170 5.724 7.558 6.376 1.034 1.040 1.023 163 1.5D Reservoir 0.34 0.11 0.12 0.11 2.47 2.53 2.51 39548 0.367 0.372 0.355 0.416 0.449 0.395 0.060 0.053 0.057 0.173 0.202 0.156 0.379 0.384 0.368 164 1.5D Reservoir 0.56 0.19 0.20 0.18 2.47 2.53 2.51 52098 0.482 0.487 0.471 0.697 0.759 0.674 0.076 0.062 0.072 0.486 0.577 0.455 0.494 0.500 0.483 165 1.5D Reservoir 1.03 0.33 0.37 0.33 2.47 2.53 2.51 69462 0.671 0.676 0.659 1.237 1.381 1.252 0.113 0.083 0.098 1.531 1.908 1.567 0.683 0.688 0.672 166 1.5D Reservoir 1.24 0.40 0.45 0.40 2.47 2.53 2.51 76880 0.745 0.750 0.733 1.480 1.665 1.482 0.129 0.091 0.117 2.192 2.774 2.196 0.757 0.763 0.746 167 1.5D Reservoir 1.55 0.49 0.56 0.48 2.47 2.53 2.51 96610 0.850 0.855 0.838 1.816 2.093 1.807 0.158 0.103 0.148 3.298 4.380 3.265 0.862 0.868 0.851 168 1.5D Reservoir 2.06 0.64 0.74 0.68 2.47 2.53 2.51 126904 1.019 1.024 1.008 2.386 2.749 2.546 0.207 0.140 0.164 5.693 7.558 6.480 1.032 1.037 1.020 169 1.5D Reservoir 2.56 0.79 0.92 0.86 2.47 2.53 2.51 121522 1.199 1.204 1.187 2.962 3.421 3.221 0.273 0.191 0.212 8.772 11.705 10.373 1.211 1.216 1.200 170 1.5D Reservoir 3.53 1.17 1.21 1.18 2.47 2.53 2.51 151588 1.644 1.649 1.632 4.390 4.540 4.417 0.449 0.426 0.432 19.272 20.610 19.507 1.656 1.661 1.645 171 1.5D Reservoir 4.16 1.42 1.43 1.37 2.47 2.53 2.51 178233 2.002 2.006 1.990 5.304 5.338 5.137 0.632 0.630 0.653 28.129 28.493 26.387 2.014 2.019 2.002 172 1.5D Reservoir 4.74 1.53 1.69 1.59 2.47 2.53 2.51 204444 2.405 2.410 2.394 5.723 6.315 5.955 0.952 0.834 0.893 32.750 39.876 35.463 2.418 2.423 2.406 173 1.5D Reservoir 5.30 1.75 1.81 1.76 2.47 2.53 2.51 222584 2.863 2.868 2.851 6.549 6.772 6.572 1.236 1.192 1.219 42.891 45.865 43.197 2.876 2.881 2.864 174 1.5D Reservoir 6.06 2.08 2.00 1.99 2.47 2.53 2.51 280087 3.557 3.562 3.545 7.775 7.494 7.453 - 1.718 1.711 60.450 56.161 55.545 3.569 3.574 3.557 175 1.5D Reservoir 6.06 2.06 1.98 2.01 2.47 2.53 2.51 276877 3.557 3.562 3.545 7.693 7.408 7.509 1.664 1.738 1.697 59.176 54.881 56.381 3.569 3.574 3.557
176 3D Reservoir 0.33 0.11 0.11 0.11 2.44 2.44 2.43 39040 0.364 0.373 0.356 0.411 0.423 0.409 0.059 0.064 0.053 0.169 0.179 0.167 0.376 0.385 0.369 177 3D Reservoir 0.58 0.19 0.20 0.19 2.44 2.44 2.43 52142 0.490 0.499 0.482 0.726 0.743 0.718 0.075 0.078 0.069 0.527 0.552 0.516 0.502 0.511 0.494 178 3D Reservoir 1.02 0.34 0.35 0.33 2.44 2.44 2.43 68625 0.667 0.676 0.659 1.260 1.301 1.252 0.104 0.102 0.098 1.586 1.694 1.567 0.679 0.688 0.671 179 3D Reservoir 1.22 0.40 0.41 0.40 2.44 2.44 2.43 76547 0.737 0.746 0.729 1.490 1.550 1.502 0.118 0.113 0.108 2.221 2.402 2.255 0.749 0.758 0.742 180 3D Reservoir 1.56 0.51 0.53 0.51 2.44 2.44 2.43 87944 0.857 0.865 0.849 1.907 1.995 1.909 0.144 0.134 0.136 3.635 3.981 3.643 0.869 0.878 0.861 181 3D Reservoir 1.96 0.63 0.68 0.65 2.44 2.44 2.43 101825 0.991 1.000 0.983 2.373 2.541 2.444 0.181 0.157 0.159 5.630 6.457 5.972 1.003 1.012 0.995 182 3D Reservoir 2.56 0.83 0.88 0.87 2.44 2.44 2.43 119089 1.213 1.222 1.205 3.098 3.304 3.269 0.261 0.231 0.221 9.601 10.917 10.685 1.225 1.234 1.217 183 3D Reservoir 3.59 1.19 1.24 1.20 2.44 2.44 2.43 157302 1.661 1.669 1.653 4.457 4.653 4.476 0.453 0.425 0.441 19.866 21.651 20.031 1.673 1.681 1.665 184 3D Reservoir 3.30 1.10 1.15 1.10 2.44 2.44 2.43 144143 1.513 1.522 1.505 4.100 4.299 4.111 0.372 0.344 0.363 16.810 18.484 16.899 1.525 1.534 1.517 185 3D Reservoir 4.17 1.39 1.44 1.39 2.44 2.44 2.43 175312 1.998 2.006 1.990 5.197 5.395 5.191 0.649 0.618 0.642 27.006 29.106 26.947 2.010 2.019 2.002 186 3D Reservoir 4.72 1.58 1.64 1.59 2.44 2.44 2.43 209269 2.385 2.394 2.377 5.905 6.138 5.931 0.894 0.854 0.881 34.873 37.673 35.180 2.397 2.406 2.389 187 3D Reservoir 5.28 1.75 1.79 1.77 2.44 2.44 2.43 229716 2.825 2.833 2.817 6.549 6.679 6.598 1.197 1.177 1.179 42.891 44.610 43.534 2.837 2.846 2.829 188 3D Reservoir 6.05 2.04 2.01 1.96 2.44 2.44 2.43 282154 3.515 3.523 3.506 7.611 7.508 7.328 1.642 1.675 1.702 57.924 56.377 53.704 3.527 3.535 3.519 189 2D Reservoir 0.34 0.11 0.12 0.11 2.42 2.52 2.28 41306 0.367 0.358 0.367 0.423 0.435 0.411 0.057 0.044 0.061 0.179 0.189 0.169 0.379 0.370 0.378 190 2D Reservoir 0.57 0.19 0.20 0.18 2.42 2.52 2.28 53081 0.483 0.474 0.483 0.713 0.730 0.690 0.072 0.058 0.079 0.508 0.533 0.476 0.495 0.487 0.495 191 2D Reservoir 1.02 0.33 0.36 0.33 2.42 2.52 2.28 69256 0.667 0.658 0.667 1.246 1.334 1.243 0.107 0.077 0.107 1.553 1.779 1.545 0.679 0.670 0.678 192 2D Reservoir 1.25 0.40 0.43 0.41 2.42 2.52 2.28 78346 0.745 0.736 0.745 1.510 1.623 1.527 0.121 0.087 0.117 2.281 2.634 2.330 0.757 0.748 0.756 193 2D Reservoir 1.55 0.48 0.54 0.52 2.42 2.52 2.28 88880 0.851 0.842 0.851 1.799 2.026 1.926 0.162 0.105 0.134 3.238 4.103 3.710 0.863 0.855 0.863 194 2D Reservoir 1.98 0.63 0.69 0.65 2.42 2.52 2.28 102499 0.987 0.978 0.987 2.347 2.583 2.424 0.183 0.127 0.166 5.507 6.673 5.875 0.999 0.991 0.999 195 2D Reservoir 2.56 0.81 0.90 0.86 2.42 2.52 2.28 121130 1.196 1.187 1.196 3.022 3.354 3.213 0.259 0.187 0.222 9.133 11.249 10.322 1.208 1.200 1.208 196 2D Reservoir 3.30 1.10 1.15 1.09 2.42 2.52 2.28 150845 1.522 1.513 1.522 4.118 4.299 4.092 0.378 0.335 0.382 16.961 18.484 16.747 1.534 1.525 1.533 197 2D Reservoir 4.16 1.39 1.44 1.38 2.42 2.52 2.28 181154 1.995 1.986 1.995 5.197 5.372 5.158 0.646 0.603 0.652 27.006 28.859 26.609 2.007 1.998 2.006 198 2D Reservoir 4.72 1.56 1.63 1.57 2.42 2.52 2.28 209260 2.384 2.374 2.383 5.836 6.100 5.884 0.907 0.843 0.896 34.064 37.214 34.619 2.396 2.387 2.395 199 2D Reservoir 5.27 1.76 1.78 1.79 2.42 2.52 2.28 241948 2.827 2.818 2.827 6.574 6.666 6.701 1.194 1.165 1.165 43.215 44.433 44.903 2.839 2.831 2.838 200 2D Reservoir 6.06 2.04 2.03 2.04 2.42 2.52 2.28 308415 3.562 3.553 3.562 7.611 7.581 7.635 1.689 1.688 1.682 57.924 57.466 58.300 3.574 3.565 3.573 201 2D 1.5D Dep. Trap. Channel 0.73 0.08 0.56 0.09 2.63 2.54 2.89 88377 0.337 0.855 0.326 0.299 2.093 0.329 0.082 0.104 0.058 0.090 4.380 0.109 0.350 0.868 0.340 202 2D 1.5D Dep. Trap. Channel 1.29 0.22 0.81 0.26 2.63 2.54 2.89 110892 0.574 1.092 0.563 0.840 3.046 0.975 0.125 0.151 0.077 0.706 9.277 0.950 0.588 1.105 0.577 203 2D 1.5D Dep. Trap. Channel 1.73 0.36 0.95 0.43 2.63 2.54 2.89 124053 0.732 1.250 0.721 1.328 3.559 1.598 0.153 0.211 0.079 1.763 12.664 2.553 0.745 1.263 0.735 204 2D 1.5D Dep. Trap. Channel 2.17 0.50 1.09 0.58 2.63 2.54 2.89 135898 0.880 1.397 0.868 1.872 4.086 2.166 0.176 0.260 0.103 3.506 16.699 4.692 0.893 1.410 0.882 205 2D 1.5D Dep. Trap. Channel 2.77 0.72 1.25 0.81 2.63 2.54 2.89 151105 1.095 1.613 1.083 2.686 4.684 3.025 0.224 0.363 0.148 7.212 21.942 9.152 1.108 1.626 1.098 206 2D 1.5D Dep. Trap. Channel 3.68 1.10 1.52 1.10 2.63 2.54 2.89 184110 1.464 1.982 1.453 4.128 5.687 4.111 0.320 0.536 0.312 17.037 32.338 16.899 1.477 1.995 1.467 207 2D 1.5D Dep. Trap. Channel 4.02 1.22 1.61 1.22 2.63 2.54 2.89 196548 1.630 2.147 1.618 4.545 6.026 4.565 0.407 0.632 0.392 20.653 36.311 20.839 1.643 2.160 1.632 208 2D 1.5D Dep. Trap. Channel 4.53 1.41 1.75 1.41 2.63 2.54 2.89 211975 1.971 2.488 1.959 5.282 6.547 5.279 0.606 0.862 0.596 27.901 42.867 27.863 1.984 2.501 1.973 209 2D 1.5D Dep. Trap. Channel 5.05 1.59 1.89 1.59 2.63 2.54 2.89 235658 2.308 2.826 2.296 5.940 7.058 5.943 0.811 1.085 0.800 35.284 49.811 35.321 2.321 2.838 2.311 210 2D 1.5D Dep. Trap. Channel 0.73 0.09 0.53 0.10 2.44 2.44 2.49 89960 0.350 0.841 0.353 0.347 1.995 0.384 0.072 0.110 0.059 0.121 3.981 0.148 0.362 0.853 0.365 211 2D 1.5D Dep. Trap. Channel 1.30 0.24 0.80 0.28 2.44 2.44 2.49 117985 0.587 1.078 0.590 0.898 2.999 1.053 0.121 0.145 0.080 0.806 8.994 1.109 0.599 1.090 0.602 212 2D 1.5D Dep. Trap. Channel 1.74 0.36 0.95 0.45 2.44 2.44 2.49 131912 0.746 1.237 0.749 1.346 3.567 1.682 0.162 0.197 0.086 1.812 12.726 2.828 0.758 1.249 0.761 213 2D 1.5D Dep. Trap. Channel 2.17 0.51 1.07 0.60 2.44 2.44 2.49 149449 0.899 1.390 0.901 1.918 3.992 2.242 0.184 0.269 0.119 3.679 15.936 5.024 0.911 1.402 0.914 214 2D 1.5D Dep. Trap. Channel 2.77 0.73 1.23 0.83 2.44 2.44 2.49 157545 1.118 1.609 1.121 2.728 4.612 3.087 0.238 0.372 0.171 7.442 21.268 9.529 1.130 1.621 1.133 215 2D 1.5D Dep. Trap. Channel 2.79 0.81 1.26 0.78 2.44 2.44 2.49 173117 1.139 1.629 1.141 3.037 4.695 2.912 0.198 0.377 0.225 9.225 22.040 8.478 1.151 1.642 1.153 216 2D 1.5D Dep. Trap. Channel 2.48 0.69 1.16 0.66 2.44 2.44 2.49 161169 1.017 1.508 1.019 2.595 4.339 2.451 0.163 0.322 0.194 6.733 18.825 6.005 1.029 1.520 1.032
Abbreviations and acronyms used without definitions in TRB publications: AAAE American Association of Airport Executives AASHO American Association of State Highway Officials AASHTO American Association of State Highway and Transportation Officials ACIâNA Airports Council InternationalâNorth America ACRP Airport Cooperative Research Program ADA Americans with Disabilities Act APTA American Public Transportation Association ASCE American Society of Civil Engineers ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials ATA American Trucking Associations CTAA Community Transportation Association of America CTBSSP Commercial Truck and Bus Safety Synthesis Program DHS Department of Homeland Security DOE Department of Energy EPA Environmental Protection Agency FAA Federal Aviation Administration FHWA Federal Highway Administration FMCSA Federal Motor Carrier Safety Administration FRA Federal Railroad Administration FTA Federal Transit Administration HMCRP Hazardous Materials Cooperative Research Program IEEE Institute of Electrical and Electronics Engineers ISTEA Intermodal Surface Transportation Efficiency Act of 1991 ITE Institute of Transportation Engineers NASA National Aeronautics and Space Administration NASAO National Association of State Aviation Officials NCFRP National Cooperative Freight Research Program NCHRP National Cooperative Highway Research Program NHTSA National Highway Traffic Safety Administration NTSB National Transportation Safety Board PHMSA Pipeline and Hazardous Materials Safety Administration RITA Research and Innovative Technology Administration SAE Society of Automotive Engineers SAFETEA-LU Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (2005) TCRP Transit Cooperative Research Program TEA-21 Transportation Equity Act for the 21st Century (1998) TRB Transportation Research Board TSA Transportation Security Administration U.S.DOT United States Department of Transportation
