| I-90 Ebl And Wbl over Bnsf / US 14/16 | Poor | 336.9 ft | 4,856 | 1972 |
| I-90 Wbl over Machinery Pass | Poor | 145.0 ft | 3,932 | 1976 |
| Wyo 59 over Dry Fork Creek | Poor | 33.1 ft | 1,336 | 1960 |
| Cl Cnty RD 20 over Lil N Fk Dead Horse Crk | Poor | 48.9 ft | 243 | 1965 |
| Wyo 59 over Donkey Creek | Fair | 129.9 ft | 22,352 | 1975 |
| Wyo 59 over Antelope Butte Creek | Fair | 25.6 ft | 19,425 | 1975 |
| Wyo 59 over Burlington Supply Ditch | Fair | 21.3 ft | 14,340 | 1941 |
| Wyo 59 over Stonepile Creek | Fair | 38.1 ft | 14,340 | 1981 |
| S Gurley Avenue over Bnsf / US 14/16 | Fair | 982.0 ft | 10,545 | 1982 |
| Enzi Drive over Donkey Creek | Fair | 31.2 ft | 10,480 | 1997 |
| I-90 Wbl over Wyo 50 (skyline Drive) | Fair | 146.3 ft | 6,001 | 1970 |
| Cl Cnty RD 38n over Donkey Creek | Fair | 160.1 ft | 5,831 | 1999 |
| Cl Cnty RD 117 over Stonepile Creek | Fair | 59.7 ft | 5,784 | 1982 |
| Wyo 51 over Stonepile Creek | Fair | 25.3 ft | 5,714 | 1984 |
| Wyo 59 over Bone Pile Creek | Fair | 20.7 ft | 5,689 | 1972 |
| Wyo 59 over Caballo Creek | Fair | 125.0 ft | 5,689 | 1972 |
| I-90 Ebl over Wyo 50 (skyline Drive) | Fair | 146.3 ft | 5,666 | 1970 |
| S Burma AVE over I-90 | Fair | 279.9 ft | 5,075 | 2010 |
| Butler Spaeth Road over Stonepile Creek | Fair | 64.0 ft | 4,860 | 1978 |
| I-90 Ebl over Hi-line Road | Fair | 145.0 ft | 4,856 | 1976 |
| Wyo 59 over Unnamed Draw | Fair | 76.1 ft | 4,826 | 1977 |
| I-90 Ebl over 4-j Road | Fair | 198.2 ft | 4,753 | 1970 |
| I-90 Ebl over Wyo 59 | Fair | 220.1 ft | 4,753 | 1971 |
| I-90 Ebl over Butler Speath Road | Fair | 150.9 ft | 4,753 | 1971 |
| I-90 Ebl And Wbl over Stonepile Creek | Fair | 48.6 ft | 4,753 | 1974 |
| Sinclair Street over Unnamed Draw | Fair | 26.2 ft | 4,707 | 2009 |
| Wyo 59 over East Fork Hay Creek | Fair | 36.1 ft | 4,682 | 1977 |
| Wyo 59 over Hay Creek | Fair | 122.0 ft | 4,682 | 1977 |
| Wyo 59 over Dry Creek | Fair | 63.0 ft | 4,682 | 1977 |
| I-90 Wbl over Hi-line Road | Fair | 145.0 ft | 4,051 | 1976 |
| I-90 Wbl over Machinery Pass | Fair | 75.1 ft | 3,932 | 1976 |
| I-90 Wbl over Bnsf Railway | Fair | 138.1 ft | 3,932 | 1976 |
| I-90 Wbl over 4-j Road | Fair | 198.2 ft | 3,771 | 1970 |
| I-90 Wbl over Butler Speath Road | Fair | 136.2 ft | 3,771 | 1971 |
| I-90 Ebl over Machinery Pass | Fair | 145.0 ft | 3,589 | 1976 |
| I-90 Ebl And Wbl over Unnamed Draw | Fair | 24.0 ft | 3,589 | 1976 |
| Echeta Road over Stonepile Creek | Fair | 38.1 ft | 3,558 | 1984 |
| Cl Cnty RD 117 over Stonepile Creek | Fair | 34.1 ft | 3,422 | 1982 |
| I-90 Wbl over Cl CR 40 (grey Road) | Fair | 153.9 ft | 3,214 | 1971 |
| I-90 Wbl over Machinery Pass | Fair | 66.9 ft | 3,214 | 1974 |
| I-90 Wbl over Cl CR 92 (stewart Road) | Fair | 146.0 ft | 3,214 | 1974 |
| Wyo 59 over Spring Creek | Fair | 166.0 ft | 2,898 | 1979 |
| I-90 Ebl over Cl CR 40 (grey Road) | Fair | 153.9 ft | 2,861 | 1971 |
| I-90 Ebl over Machinery Pass | Fair | 66.9 ft | 2,861 | 1974 |
| I-90 Ebl And Wbl over Unnamed Draw | Fair | 23.6 ft | 2,861 | 1976 |
| I-90 Ebl over Cl CR 92 (stewart Road) | Fair | 146.0 ft | 2,861 | 1974 |
| US 14 over Little Rawhide Creek | Fair | 45.3 ft | 2,477 | 2009 |
| I-90 Wbl over W Fork Wild Horse Creek | Fair | 93.5 ft | 2,235 | 1960 |
| I-90 Wbl over E Fork Wild Horse Creek | Fair | 86.9 ft | 2,235 | 1960 |
| I-90 Wbl over Wild Horse Creek Road | Fair | 93.5 ft | 2,235 | 1960 |
| I-90 Wbl over Cl CR 32 (force Road) | Fair | 93.5 ft | 2,235 | 1960 |
| I-90 Wbl over Machinery Pass | Fair | 67.6 ft | 2,235 | 1959 |
| I-90 Wbl over Machinery Pass | Fair | 67.6 ft | 2,235 | 1959 |
| I-90 Wbl over Machinery Pass | Fair | 67.6 ft | 2,235 | 1959 |
| I-90 Ebl over W Fork Wild Horse Creek | Fair | 93.5 ft | 2,175 | 1960 |
| I-90 Ebl over E Fork Wild Horse Creek | Fair | 86.9 ft | 2,175 | 1960 |
| I-90 Ebl over Wild Horse Creek Road | Fair | 93.5 ft | 2,175 | 1960 |
| I-90 Ebl over Cl CR 32 (force Road) | Fair | 93.5 ft | 2,175 | 1960 |
| I-90 Ebl over Machinery Pass | Fair | 67.6 ft | 2,175 | 1959 |
| I-90 Ebl over Machinery Pass | Fair | 67.6 ft | 2,175 | 1959 |
| I-90 Ebl over Machinery Pass | Fair | 67.6 ft | 2,175 | 1959 |
| I-90 Ebl over Cl CR 20 (barlow Road) | Fair | 92.8 ft | 2,094 | 1962 |
| I-90 Ebl over Machinery Pass | Fair | 67.6 ft | 2,094 | 1960 |
| I-90 Wbl over Cl CR 63 (kingsbury Rd) | Fair | 92.8 ft | 2,087 | 1962 |
| I-90 Wbl over Machinery Pass | Fair | 67.6 ft | 2,087 | 1960 |
| I-90 Wbl over Machinery Pass | Fair | 67.6 ft | 1,835 | 1962 |
| I-90 Wbl over Barber Creek Road | Fair | 110.9 ft | 1,835 | 1962 |
| I-90 Ebl over Machinery Pass | Fair | 67.6 ft | 1,832 | 1962 |
| I-90 Ebl over Cl CR 19 (barber Crk Rd) | Fair | 110.9 ft | 1,832 | 1962 |
| Wyo 387 over Dry Fork Powder River | Fair | 191.9 ft | 1,788 | 1980 |
| Wyo 387 over Hay Creek | Fair | 98.1 ft | 1,535 | 1982 |
| Wyo 387 over Unnamed Draw | Fair | 31.5 ft | 1,535 | 1982 |
| Wyo 50 over Mud Spring Creek | Fair | 43.0 ft | 1,505 | 1985 |
| Wyo 50 over S Branch Fourmile Creek | Fair | 26.6 ft | 1,505 | 1985 |
| Wyo 450 over Machinery Pass | Fair | 89.9 ft | 1,479 | 1977 |
| Wyo 450 over Bnsf Railway | Fair | 193.9 ft | 1,479 | 1980 |
| Wyo 450 over N Prong Lttle Thunder CR | Fair | 28.9 ft | 1,479 | 1978 |
| Wyo 51 over Unnamed Draw | Fair | 42.0 ft | 1,455 | 1952 |
| Wyo 51 over Bnsf Railway | Fair | 253.9 ft | 1,455 | 1980 |
| Wyo 51 over Bnsf Railway | Fair | 296.9 ft | 1,455 | 1980 |
| Wyo 51 over Dry Donkey Creek | Fair | 145.0 ft | 1,455 | 1980 |
| Wyo 59 over Bnsf Railway | Fair | 291.0 ft | 1,336 | 1979 |
| Wyo 51 over Donkey Creek Overflow | Fair | 107.6 ft | 1,326 | 1952 |
| Wyo 51 over Donkey Creek | Fair | 90.6 ft | 1,326 | 1956 |
| Wyo 51 over Bnsf Railway | Fair | 384.8 ft | 1,326 | 2007 |
| US 14 over North Wildcat Creek | Fair | 133.9 ft | 1,321 | 1983 |
| US 14 over Horse Creek | Fair | 105.0 ft | 1,321 | 1983 |
| N Burma Avenue over Stonepile Creek | Fair | 52.5 ft | 1,317 | 1979 |
| El Camino Court over Stonepile Creek | Fair | 62.0 ft | 1,052 | 1984 |
| Wyo 59 over Coal Creek | Fair | 23.6 ft | 1,032 | 1951 |
| Wyo 59 over Horse Creek | Fair | 165.0 ft | 996 | 2015 |
| Cl Cnty RD 30 over Bnsf Railway | Fair | 204.1 ft | 879 | 1981 |
| I-90 Ebl Off Ramp over Unnamed Draw | Fair | 25.9 ft | 851 | 1976 |
| Cl Cnty RD 3 over I-90 | Fair | 268.0 ft | 760 | 1976 |
| Cl Cnty RD 1 over I-90 | Fair | 257.9 ft | 596 | 1974 |
| Cl Cnty RD 1 over Donkey Creek | Fair | 40.0 ft | 596 | 2010 |
| Wyo 59 over Unnamed Draw | Fair | 20.7 ft | 544 | 1954 |
| Wyo 59 over Unnamed Draw | Fair | 31.2 ft | 544 | 1954 |
| Wyo 59 over Olmstead Draw | Fair | 158.5 ft | 544 | 1954 |
| US 14 over Spotted Horse Creek | Fair | 115.2 ft | 493 | 1977 |
| Buckskin Drive over Little Rawhide Creek | Fair | 33.1 ft | 470 | 1985 |
| Constitution Drive over Little Rawhide Creek | Fair | 23.6 ft | 313 | 1985 |
| American Lane over Little Rawhide Creek | Fair | 23.3 ft | 313 | 1985 |
| Wyo 59 over N F Little Rawhide Creek | Fair | 43.0 ft | 236 | 1989 |
| Cl Cnty RD 96 over Dry Donkey Creek | Fair | 43.0 ft | 146 | 1978 |
| Cl Cnty RD 53 over Bnsf Railway | Fair | 171.3 ft | 146 | 1981 |
| Cl Cnty RD 99b over Bnsf Railway | Fair | 231.0 ft | 146 | 1981 |
| Cl Cnty RD 99b over Machinery Pass | Fair | 112.9 ft | 146 | 1983 |
| Cl Cnty RD 90 over Donkey Creek | Fair | 33.5 ft | 146 | 2009 |
| Cl Cnty RD 12 over Timber Creek | Fair | 40.0 ft | 140 | 1983 |
| Cl Cnty RD 49 over Little Powder River | Fair | 164.0 ft | 113 | 1996 |
| Cl Cnty RD 94 over I-90 | Fair | 279.9 ft | 98 | 1974 |
| Cl Cnty RD 18 over N Fork Dead Horse Creek | Fair | 50.9 ft | 75 | 1965 |
| Cl Cnty RD 61 over Belle Fourche River | Fair | 111.9 ft | 49 | 1990 |
| Cl Cnty RD 91 over Cottonwood Creek | Fair | 86.0 ft | 41 | 1987 |
| Cl Cnty RD 65 over Bnsf Railway | Fair | 253.0 ft | 29 | 1977 |
| Cl Cnty RD 11 over Sa Creek | Fair | 111.9 ft | 20 | 1991 |
| Cl Cnty RD 98 over Little Powder River | Fair | 92.8 ft | 17 | 1987 |
| Wyo 59 over Homestead Trickle | Good | 26.2 ft | 18,150 | 2008 |
| Wyo 50 over Donkey Creek | Good | 33.5 ft | 10,402 | 2019 |
| Cl Cnty RD 38n over I-90 | Good | 259.8 ft | 7,593 | 1990 |
| Cl Cnty RD 38n over Stonepile Creek | Good | 24.6 ft | 5,831 | 1999 |
| Wyo 59 over Tisdale Creek | Good | 24.9 ft | 5,689 | 2011 |
| Shoshone Avenue over Donkey Creek | Good | 35.8 ft | 5,103 | 2007 |
| Wyo 59 over Belle Fourche River | Good | 149.9 ft | 4,826 | 1984 |
| Butler Spaeth Road over Donkey Creek | Good | 89.9 ft | 3,856 | 2007 |
| I-90 Wbl over Wyo 59 | Good | 220.1 ft | 3,771 | 1971 |
| Brooks Avenue over Stonepile Creek | Good | 47.6 ft | 3,720 | 1982 |
| I-90 Ebl over Machinery Pass | Good | 75.1 ft | 3,589 | 1976 |
| I-90 Ebl over Bnsf Railway | Good | 138.1 ft | 3,589 | 1976 |
| W 4-j Road over Donkey Creek | Good | 55.1 ft | 3,281 | 1983 |
| Wyo 51 over Donkey Creek | Good | 145.0 ft | 2,961 | 2002 |
| US 14 over Machinery Pass | Good | 368.1 ft | 2,477 | 2009 |
| US 14 over Little Rawhide Creek | Good | 45.3 ft | 2,477 | 2009 |
| Wyo 450 over Bnsf Railway | Good | 223.1 ft | 1,479 | 1979 |
| Wyo 450 over N Prong Lttle Thunder CR | Good | 29.5 ft | 1,479 | 1978 |
| Wyo 51 over Unnamed Draw | Good | 32.5 ft | 1,455 | 1952 |
| Wyo 59 over Dry Fork Creek | Good | 37.4 ft | 1,336 | 1992 |
| Wyo 59 over Little Powder River | Good | 109.9 ft | 1,336 | 2005 |
| Wyo 59 over Corral Creek | Good | 85.0 ft | 1,336 | 2005 |
| Cl Cnty RD 17-38n over Bnsf Railway | Good | 299.9 ft | 1,336 | 2019 |
| US 14 over South Wildcat Creek | Good | 154.9 ft | 1,321 | 2020 |
| US 14 over Rawhide Creek | Good | 190.0 ft | 1,321 | 2020 |
| Wyo 59 over Little Powder River | Good | 254.9 ft | 1,032 | 2007 |
| Wyo 59 over Unnamed Draw | Good | 23.6 ft | 996 | 1951 |
| Wyo 59 over White Tail Creek | Good | 80.1 ft | 996 | 2015 |
| Cl Cnty RD 4 over Triton Coal Rr Spur | Good | 26.6 ft | 918 | 1998 |
| I-90 Wbl On Ramp over Unnamed Draw | Good | 22.3 ft | 839 | 1976 |
| Wyo 59 over Elk Creek | Good | 149.9 ft | 544 | 2019 |
| Cl Cnty RD 29 over Wild Horse Creek | Good | 76.1 ft | 169 | 1987 |
| Cl Cnty RD 94 over Donkey Creek | Good | 51.5 ft | 98 | 2010 |
| Cl Cnty RD 26 over Cow Creek | Good | 51.8 ft | 39 | 2009 |