| Arpan RD over South Canal | Poor | 65.9 ft | 269 | 1975 |
| Old HWY 212 over Station Elm Ck | Poor | 33.1 ft | 48 | 1945 |
| Gaver Road over Redwater Rv | Poor | 44.0 ft | 47 | 1920 |
| Olson Cutoff Road over Belle Fourche Rv | Poor | 242.1 ft | 47 | 1995 |
| Brooker RD over Indian Ck | Poor | 116.1 ft | 47 | 1950 |
| Brooker RD over Hilder Brand Ck | Poor | 24.9 ft | 47 | 1985 |
| Winkler RD over Horse Ck | Poor | 32.2 ft | 47 | 1958 |
| Ypparilla RD over Ck | Poor | 24.0 ft | 47 | 1960 |
| Eicher RD over Horse Ck | Poor | 101.0 ft | 47 | 1950 |
| Old HWY 212 over Dry Ck | Poor | 80.1 ft | 47 | 1970 |
| Youngberg Road over Horse Ck | Poor | 140.1 ft | 47 | 1978 |
| Old HWY 212 over Ck | Poor | 62.0 ft | 47 | 1950 |
| Dillinger RD over Horse Ck | Poor | 71.9 ft | 46 | 1937 |
| Youngberg RD over Dry Ck | Poor | 33.1 ft | 32 | 1945 |
| Old HWY 85 over Four Mile Ck | Poor | 103.0 ft | 25 | 1945 |
| Old HWY 85 over Battle Ck | Poor | 103.0 ft | 25 | 1945 |
| Mail RD over Indian Ck | Poor | 141.1 ft | 22 | 1940 |
| Old HWY 79 over South Fork Moreau Rv | Poor | 298.9 ft | 22 | 1930 |
| Kling RD over Hay Ck | Poor | 26.6 ft | 12 | 1930 |
| Vale Cutoff RD over Belle Fourche Rv | Poor | 20.3 ft | 10 | 1974 |
| Us085 over Hay Ck | Fair | 151.6 ft | 15,432 | 1963 |
| Us085 over Belle Fourche Rv | Fair | 583.3 ft | 10,476 | 1958 |
| Sd034 over Willow Ck | Fair | 24.9 ft | 3,961 | 1939 |
| Sd034 over Redwater Rv | Fair | 307.7 ft | 3,547 | 1992 |
| Sd034 over False Bottom Ck | Fair | 141.4 ft | 3,547 | 1992 |
| Us212 over Belle Fourche Rv | Fair | 496.1 ft | 2,874 | 1992 |
| Sd079 over Cottonwood Ck | Fair | 117.1 ft | 1,935 | 1954 |
| Us212 over Belle Fourche Rv | Fair | 217.8 ft | 1,790 | 2002 |
| Sd079 over Belle Fourche Rv | Fair | 295.9 ft | 1,670 | 1985 |
| Us085 over Crow Ck | Fair | 140.1 ft | 1,543 | 1966 |
| Us085 over Ck | Fair | 21.7 ft | 1,543 | 1966 |
| Us085 over Owl Ck | Fair | 140.1 ft | 1,543 | 1966 |
| Us212 P over Redwater Rv | Fair | 353.3 ft | 1,418 | 1995 |
| 10th Avenue over Hay Ck | Fair | 60.0 ft | 1,335 | 1961 |
| Us085 over Battle Ck | Fair | 128.6 ft | 1,190 | 1965 |
| Us085 over Moreau Rv | Fair | 158.1 ft | 1,190 | 1965 |
| Us085 over Four Mile Ck | Fair | 158.1 ft | 1,190 | 1965 |
| Sd034 over Hay Ck | Fair | 164.0 ft | 1,127 | 1956 |
| Sd034 over Hay Ck | Fair | 197.5 ft | 1,127 | 1956 |
| Us085 over Indian Ck | Fair | 140.1 ft | 1,037 | 1965 |
| Us085 over East Br Antelope Ck | Fair | 140.1 ft | 1,037 | 1965 |
| Valley Township RD over Cottonwood Ck | Fair | 49.9 ft | 870 | 1978 |
| Sd079 over South Willow Ck | Fair | 117.1 ft | 692 | 1962 |
| Sd079 over North Canal | Fair | 30.8 ft | 692 | 1962 |
| Sd079 over Dry Ck | Fair | 117.1 ft | 692 | 1962 |
| Sd079 over South Br Dry Ck | Fair | 20.7 ft | 692 | 1962 |
| Sd079 over Deadman Ck | Fair | 24.9 ft | 692 | 1962 |
| Sd079 over North Fork Willow Ck | Fair | 25.3 ft | 581 | 1968 |
| Sd079 over North Willow Ck | Fair | 184.7 ft | 581 | 1968 |
| Us212 over Ck | Fair | 20.3 ft | 501 | 1956 |
| Us212 over Dry Ck | Fair | 151.6 ft | 501 | 1956 |
| Us212 over Willow Ck | Fair | 196.5 ft | 501 | 1956 |
| Us212 over Ck | Fair | 23.6 ft | 501 | 1956 |
| Us212 over Sulphur Ck | Fair | 197.5 ft | 501 | 1956 |
| Sd079 over Ck | Fair | 22.3 ft | 366 | 1983 |
| Sd079 over South Fork Moreau Rv | Fair | 170.6 ft | 366 | 1972 |
| Snoma Road over Redwater Canal | Fair | 24.9 ft | 150 | 1975 |
| Snoma RD over Stinkingwater Ck | Fair | 86.9 ft | 149 | 1969 |
| Whitewood RD over South Canal | Fair | 40.0 ft | 143 | 1980 |
| National Street over Willow Ck | Fair | 28.5 ft | 112 | 2008 |
| Snoma Road over Redwater Rv | Fair | 149.9 ft | 112 | 1987 |
| Camp Crook RD over North Indian Ck | Fair | 60.0 ft | 110 | 2012 |
| Beulah RD over Trib Redwater Ck | Fair | 40.0 ft | 100 | 1975 |
| Arpan RD over Indian Ck | Fair | 117.1 ft | 100 | 1990 |
| Riley RD over Owl Ck | Fair | 43.6 ft | 71 | 2021 |
| Beet RD over Indian Ck | Fair | 77.1 ft | 66 | 2011 |
| Vale Cutoff RD over South Canal | Fair | 44.9 ft | 66 | 1982 |
| Vale Cutoff RD over Whitewood Ck | Fair | 120.1 ft | 65 | 1966 |
| Whitewood Valleyrd over Belle Fourche Rv | Fair | 250.7 ft | 55 | 1980 |
| Arpan RD over North Canal | Fair | 40.0 ft | 51 | 1967 |
| 3vvv RD over Middle Ck | Fair | 24.9 ft | 50 | 2002 |
| Roundup Street over Belle Fourche Rv | Fair | 121.1 ft | 49 | 1980 |
| Lewis Road over Dry Ck | Fair | 49.9 ft | 49 | 1984 |
| Harding Cutoff RD over Alkali Ck | Fair | 29.5 ft | 47 | 2016 |
| Belle Fourche Inle over Inlet Canal | Fair | 103.0 ft | 47 | 1999 |
| Mail RD over Owl Ck | Fair | 40.0 ft | 47 | 1978 |
| Vallery RD over Stinkingwater Ck | Fair | 69.6 ft | 47 | 1920 |
| Riley RD over Indian Ck | Fair | 97.8 ft | 47 | 1950 |
| Stone Lake Road over Owl Ck | Fair | 26.6 ft | 47 | 1964 |
| 184th Street over Dry Ck | Fair | 28.9 ft | 47 | 1945 |
| Camp Crook RD over South Indian Ck | Fair | 94.2 ft | 40 | 1962 |
| West Fairpoint RD over Ck | Fair | 22.6 ft | 30 | 2017 |
| Twilight RD over North Fork Sulphur Ck | Fair | 25.9 ft | 28 | 1998 |
| Double R RD over North Fork Sulphur Ck | Fair | 22.0 ft | 28 | 1962 |
| Double R RD over North Fork Sulphur Ck | Fair | 25.9 ft | 28 | 1962 |
| Lewis Road over Deer Ck | Fair | 78.1 ft | 26 | 1996 |
| Old HWY 85 over South Fork Moreau Rv | Fair | 294.9 ft | 21 | 1955 |
| Old HWY 85 over Spur Ck | Fair | 53.1 ft | 21 | 1936 |
| Old HWY 85 over Ck | Fair | 21.0 ft | 21 | 1932 |
| Old Highway 85 over Hay Ck | Fair | 21.0 ft | 21 | 1932 |
| Bean Road over Inlet Channel | Fair | 71.5 ft | 20 | 1997 |
| Twilight RD over South Fork Moreau Rv | Fair | 129.9 ft | 8 | 1982 |
| Twilight RD over Trail Creek | Fair | 44.9 ft | 8 | 2020 |
| Zeona Road over Spring Creek | Fair | 37.7 ft | 4 | 2020 |
| Hoover-zeona RD over Ck | Fair | 38.7 ft | 4 | 2024 |
| Inlet Canal Road over Crow Creek Wasteway | Fair | 71.5 ft | 1 | 1907 |
| Sd034 over Redwater Canal | Good | 20.3 ft | 3,547 | 1964 |
| Us212 over Horse Ck | Good | 167.0 ft | 2,454 | 2005 |
| Us212 over South Canal | Good | 38.4 ft | 1,790 | 2002 |
| 8th Avenue over Belle Fourche Rv | Good | 166.0 ft | 1,637 | 1994 |
| Us212 over Owl Ck | Good | 42.3 ft | 1,319 | 2020 |
| Us212 over Deer Ck | Good | 22.3 ft | 501 | 1956 |
| Sd079 over Frog Ck | Good | 24.6 ft | 366 | 2021 |
| Stone Lake RD over Horse Ck | Good | 127.0 ft | 302 | 2002 |
| 8th Avenue over Hay Ck | Good | 33.5 ft | 300 | 2019 |
| Snoma RD over Maloney Ck | Good | 31.2 ft | 175 | 2022 |
| Hansen Road over North Canal | Good | 32.2 ft | 160 | 1994 |
| Camp Crook RD over Trib To North Indian Ck | Good | 20.7 ft | 124 | 2011 |
| Old HWY 212 over Willow Ck | Good | 83.0 ft | 102 | 2009 |
| Beet Road over Indian Ck Lateral | Good | 26.6 ft | 75 | 1962 |
| Beet RD over South Canal | Good | 23.6 ft | 75 | 1997 |
| Orman RD over Indian Ck | Good | 179.1 ft | 72 | 2021 |
| Orman Road over Ck | Good | 82.0 ft | 72 | 2022 |
| Vale Cutoff RD over South Canal | Good | 20.7 ft | 66 | 1995 |
| Snoma RD over South Canal | Good | 35.4 ft | 59 | 1996 |
| Mail RD over Ck | Good | 61.7 ft | 53 | 1998 |
| Old HWY 212 over Mud Elm Ck | Good | 20.7 ft | 48 | 2023 |
| Rehorst Road over Belle Fourche Rv | Good | 124.0 ft | 47 | 2000 |
| Fruitdale RD over Belle Fourche Rv | Good | 199.1 ft | 47 | 1995 |
| Arpan RD over South Canal | Good | 149.0 ft | 47 | 1975 |
| Vallery RD over South Canal | Good | 20.7 ft | 47 | 1998 |
| Riley RD over North Canal | Good | 20.7 ft | 47 | 1997 |
| Winkler RD over North Canal | Good | 24.0 ft | 47 | 1997 |
| Winkler Road over Horse Ck | Good | 65.0 ft | 47 | 2020 |
| Stone Lake RD over North Canal | Good | 20.7 ft | 47 | 1996 |
| Yparilla Road over North Canal | Good | 20.7 ft | 47 | 1997 |
| Bismarck Branch RD over Belle Fourche Rv | Good | 189.0 ft | 47 | 2007 |
| Camp Crook RD over Ck | Good | 20.7 ft | 40 | 2011 |
| Old HWY 85 over Indian Ck | Good | 137.1 ft | 36 | 2024 |
| Double R RD over North Fork Sulphur Ck | Good | 28.5 ft | 35 | 2004 |
| Taylor Road over North Canal | Good | 25.9 ft | 31 | 1998 |
| Mail RD over North Canal | Good | 24.6 ft | 31 | 1998 |
| Fairpoint RD over Ck | Good | 38.4 ft | 30 | 2017 |
| 139th AVE Wetz RD over Nine Mile Ck | Good | 89.6 ft | 25 | 2001 |
| Twilight RD over North Fork Sulphur Ck | Good | 22.0 ft | 25 | 1962 |
| Mail RD over Indian Ck Lateral | Good | 20.7 ft | 22 | 1997 |
| Reid RD over North Canal | Good | 61.4 ft | 21 | 1997 |
| Old HWY 85 over N. Branch Spur Ck | Good | 30.8 ft | 21 | 1932 |
| Old HWY 85 over Ck | Good | 24.9 ft | 21 | 1932 |
| Old HWY 212 over Sulphur Ck | Good | 52.5 ft | 20 | 2023 |
| Owl Basin RD over Wolf Creek | Good | 22.0 ft | 10 | 1962 |
| Diversion Dam Road over Inlet Canal | Good | 80.4 ft | 1 | 1906 |