| Old HWY 85 over Sheep Ck | Poor | 78.1 ft | 60 | 1936 |
| Us085 over South Fork Grand Rv | Fair | 254.9 ft | 1,484 | 1963 |
| Us085 over Buffalo Ck | Fair | 105.6 ft | 1,330 | 1964 |
| Us085 over Sheep Ck | Fair | 105.6 ft | 1,248 | 1963 |
| Us085 over Jones Ck | Fair | 117.1 ft | 1,248 | 1960 |
| Us085 over Bull Ck | Fair | 117.1 ft | 1,248 | 1960 |
| Us085 over North Br Moreau Rv | Fair | 166.7 ft | 1,190 | 1974 |
| Us085 over Sand Ck | Fair | 174.5 ft | 1,190 | 1974 |
| Us085 over Big Nasty Ck | Fair | 117.1 ft | 1,075 | 1960 |
| Us085 over Crooked Ck | Fair | 131.9 ft | 1,075 | 1973 |
| Sd079 over South Fork Grand Rv | Fair | 459.6 ft | 364 | 1957 |
| Sd079 over Big Nasty Ck | Fair | 233.9 ft | 364 | 1962 |
| Sd079 over North Fork Grand Rv | Fair | 213.9 ft | 364 | 1966 |
| Sd079 over Moreau Rv | Fair | 138.5 ft | 356 | 1964 |
| Sd020 over Rush Ck | Fair | 106.0 ft | 342 | 1975 |
| Sd020 over Gap Ck | Fair | 167.0 ft | 191 | 1959 |
| Camp Crook Road over Ck | Fair | 40.0 ft | 180 | 1985 |
| Cox Road over Crooked Ck | Fair | 39.0 ft | 139 | 2016 |
| Cave Hill RD over Bull Ck | Fair | 100.1 ft | 131 | 1977 |
| Sd020 over Brush Ck | Fair | 145.0 ft | 112 | 1975 |
| Camp Crook RD over Ck | Fair | 30.8 ft | 97 | 1960 |
| Harding Cut-off over Katy Ck | Fair | 44.9 ft | 36 | 1961 |
| Marty RD over North Fork Moreau Rv | Fair | 79.1 ft | 31 | 1986 |
| Harding RD over South Fork Moreau Rv | Fair | 119.1 ft | 22 | 1961 |
| Sd079 over Ck | Good | 83.3 ft | 364 | 1962 |
| Sd079 over Ck | Good | 83.0 ft | 364 | 1962 |
| Sd020 over Clarks Fork Ck | Good | 214.9 ft | 191 | 1995 |
| Sd020 over Squaw Ck | Good | 31.2 ft | 191 | 1994 |
| Sd020 over Sioux Ck | Good | 41.7 ft | 191 | 2021 |
| Sd020 over Little Missouri Rv | Good | 263.5 ft | 112 | 2021 |
| Sd020 over Valley Ck | Good | 153.9 ft | 112 | 2021 |
| Ludlow RD over Coal Bank Ck | Good | 29.9 ft | 91 | 1987 |
| Ludlow RD over Lems Ck | Good | 49.9 ft | 91 | 1987 |
| Cox RD over Crooked Ck | Good | 48.2 ft | 87 | 2016 |
| Harding RD over Valley Ck | Good | 28.5 ft | 75 | 2004 |
| Lewton RD over Slick Ck | Good | 25.3 ft | 70 | 2012 |
| N. Camp Crook RD over Slick Ck | Good | 28.5 ft | 64 | 2015 |
| Old HWY 85 over Boxelder Ck | Good | 22.6 ft | 60 | 2021 |
| Camp Crook RD over South Fork Moreau Rv | Good | 24.6 ft | 50 | 1999 |
| River Road over Little Missouri Rv | Good | 20.7 ft | 45 | 2006 |
| Ladner Road over Dry House Ck | Good | 24.6 ft | 45 | 2003 |
| Park RD over West Squaw Ck | Good | 28.5 ft | 45 | 2008 |
| Camp Crook RD over North Fork Stick Ck | Good | 24.6 ft | 44 | 2001 |
| Camp Crook RD over Shaw Ck | Good | 22.0 ft | 36 | 1961 |
| Redig RD over Ck | Good | 28.5 ft | 28 | 2018 |
| Fas 6313 over Boxelder Ck | Good | 299.9 ft | 25 | 2013 |
| Gilbert Hett RD over Trib. To Grand River | Good | 28.5 ft | 25 | 2008 |
| Wagner RD over Big Nasty Ck | Good | 133.9 ft | 23 | 2017 |
| Sorum RD over Point Ck | Good | 28.5 ft | 9 | 2006 |