| Moccasin Park RD over White Clay Creek | Poor | 33.8 ft | 50 | 1975 |
| Smithwick Road over White River | Poor | 195.2 ft | 10 | 1935 |
| IRR Us018 over Wolf Ck | Fair | 32.8 ft | 5,154 | 2006 |
| IRR BIA RTE 27 over White River | Fair | 196.5 ft | 2,368 | 1985 |
| IRR Us018 over White Clay Ck | Fair | 83.3 ft | 2,131 | 2011 |
| IRR BIA RTE 2 over Medicine Root Creek | Fair | 34.1 ft | 1,314 | 1980 |
| IRR Us018 over Black Tail Ck | Fair | 132.5 ft | 1,294 | 1953 |
| IRR Us018 over Slim Butte Ck | Fair | 118.4 ft | 1,294 | 1953 |
| IRR Us018 over White Rv | Fair | 157.5 ft | 1,294 | 1953 |
| IRR Us018 over White Clay Ck | Fair | 117.1 ft | 1,294 | 1953 |
| IRR Us018 over Stinking Water Ck | Fair | 31.2 ft | 1,130 | 1948 |
| IRR BIA RTE 27 over Cottonwood Creek | Fair | 180.4 ft | 916 | 1965 |
| IRR BIA RTE 41 over White River | Fair | 169.0 ft | 624 | 1976 |
| IRR BIA RTE 3202 over White River | Fair | 30.2 ft | 154 | 1959 |
| IRR BIA RTE 2 over White River | Fair | 281.2 ft | 134 | 1973 |
| IRR BIA RTE 36 over White Clay Creek | Good | 107.6 ft | 7,551 | 2001 |
| IRR Us018 over Ck | Good | 35.8 ft | 3,597 | 2016 |
| IRR Us018 over Ck | Good | 32.8 ft | 3,274 | 2011 |
| IRR Us018 over Cheyenne Ck | Good | 26.9 ft | 3,274 | 2020 |
| IRR Us018 over Trib. To White Clay Ck | Good | 20.7 ft | 2,131 | 2011 |
| IRR Us018 over Trib. To White Clay Ck | Good | 22.6 ft | 2,131 | 2011 |
| IRR Us018 over Ck | Good | 22.6 ft | 2,131 | 2011 |
| IRR Us018 over White Clay Ck | Good | 76.1 ft | 2,131 | 2011 |
| IRR Us018 over Wounded Knee Ck | Good | 24.6 ft | 1,170 | 2017 |
| IRR Us018 over Stinking Water Ck | Good | 31.2 ft | 1,130 | 2003 |
| IRR Us018 over Stinking Water Ck | Good | 36.1 ft | 1,130 | 2003 |
| IRR BIA RTE 33 over Wounded Knee Creek | Good | 30.8 ft | 600 | 2007 |
| IRR BIA RTE 27 over Wounded Knee Tributary | Good | 28.5 ft | 500 | 2011 |
| IRR BIA Route 32 over White River | Good | 25.6 ft | 500 | 2012 |
| IRR BIA RTE N over Trib Of Medicine Root Ck | Good | 25.3 ft | 200 | 2013 |
| IRR BIA RTE N over Trib Of Medicine Root Ck | Good | 24.6 ft | 100 | 2013 |
| IRR BIA RTE N over Trib Of Medicine Root Ck | Good | 25.6 ft | 100 | 2013 |
| IRR BIA RTE 2 over Trib Of White River | Good | 22.6 ft | 100 | 2016 |
| IRR BIA RTE 8 over Wounded Knee Creek | Good | 35.1 ft | 74 | 2007 |
| IRR BIA RTE 49 over Route 27 Drain Channel | Good | 24.6 ft | 25 | 2023 |