| IRR - S 251 over Smoke Creek | Poor | 25.9 ft | 101 | 1954 |
| County Road 224 over Coal Creek 010 | Poor | 49.9 ft | 100 | 1960 |
| Coal Creek RD over Coal Creek 027 | Poor | 58.1 ft | 100 | 1950 |
| County Road 226 over Coal Creek 038 | Poor | 24.0 ft | 100 | 1971 |
| S 248 over Poplar River | Fair | 277.6 ft | 392 | 1940 |
| S 248 over W Fk Poplar Rv Overflow | Fair | 50.9 ft | 194 | 1948 |
| S 248 over Martin Coulee | Fair | 76.1 ft | 194 | 1948 |
| S 248 over Spring Coulee | Fair | 44.9 ft | 154 | 1950 |
| S 511 over S Fork Whitetail Creek | Fair | 28.2 ft | 132 | 1999 |
| S 511 over Whitetail Creek | Fair | 80.1 ft | 132 | 2004 |
| French LN over Poplar River Overflo 015 | Fair | 24.9 ft | 100 | 1978 |
| E Susag RD over Poplar River 039 | Fair | 100.1 ft | 100 | 2001 |
| Eagle Creek RD over Eagle Creek 005 | Fair | 46.3 ft | 100 | 1950 |
| S 13 over Outlet Creek | Fair | 51.8 ft | 42 | 1957 |
| S 511 over N Fork Whitetail Creek | Fair | 39.0 ft | 24 | 1934 |
| IRR - S 13 over Manternach Coulee | Good | 22.0 ft | 795 | 1988 |
| S 248 over Butte Creek | Good | 148.6 ft | 392 | 2023 |
| S 248 over Spring Creek | Good | 80.4 ft | 392 | 2023 |
| S 248 over Drainage | Good | 86.9 ft | 392 | 2023 |
| S248 over Drainage | Good | 25.6 ft | 392 | 2024 |
| S 248 over Drainage | Good | 24.9 ft | 392 | 2007 |
| S 5 over Drainage | Good | 20.0 ft | 323 | 2011 |
| IRR - S 13 over Negro Coulee | Good | 88.9 ft | 285 | 1988 |
| IRR - S 13 over Poplar River | Good | 189.0 ft | 285 | 1988 |
| S 13 over East Fork Poplar River | Good | 143.0 ft | 225 | 1957 |
| S 248 over Drainage | Good | 24.0 ft | 194 | 2023 |
| S 248 over Drainage | Good | 67.6 ft | 194 | 2023 |
| N Four Buttes RD over Butte Creek 012 | Good | 101.7 ft | 100 | 2017 |
| Old Scobey RD over Poplar River | Good | 163.4 ft | 100 | 2021 |
| French LN over Poplar River 009 | Good | 143.7 ft | 100 | 2003 |
| Navajo RD over Eagle Creek 004 | Good | 55.1 ft | 100 | 1986 |
| Peerless RD over W Fork Poplar Rver 033 | Good | 118.4 ft | 55 | 1992 |
| S 13 over East Fork Poplar River | Good | 143.0 ft | 42 | 1957 |