| US 212 over Little Powder River | Fair | 121.4 ft | 2,594 | 1976 |
| US 212 over E Fk Little Powder River | Fair | 23.0 ft | 2,594 | 1983 |
| S 544 over Little Powder River | Fair | 183.1 ft | 139 | 1974 |
| Big Powder R E RD over Little Powder River 028 | Fair | 249.7 ft | 107 | 1947 |
| Camp Creek RD over Pumpkin Creek 021 | Fair | 36.1 ft | 100 | 1915 |
| S 484 Fh 51 over Otter Creek | Fair | 102.7 ft | 85 | 1963 |
| S 391-moorhead RD over Drainage Overflow | Fair | 45.9 ft | 74 | 1935 |
| Belle Creek RD over Little Powder River 011 | Fair | 62.0 ft | 50 | 1970 |
| Powderville RD E over Crow Creek 004 | Fair | 38.1 ft | 48 | 1986 |
| RD 552 over Powder River 016 | Fair | 470.5 ft | 47 | 2008 |
| S 484 Fh 51 over Otter Creek | Fair | 123.4 ft | 35 | 1999 |
| US 212 over E Fork Otter Creek | Good | 44.0 ft | 2,305 | 1992 |
| US 212 over Pumpkin Creek | Good | 32.5 ft | 2,197 | 2012 |
| US 212 over Powder River | Good | 625.0 ft | 2,084 | 1985 |
| S 59 over Mizpah Creek | Good | 91.2 ft | 742 | 2001 |
| S 59 over Road Creek-stockpass | Good | 20.0 ft | 742 | 2001 |
| Moorhead RD over Powder River 006 | Good | 240.8 ft | 100 | 2022 |
| Mobley RD over Mizpah Creek 019 | Good | 36.1 ft | 100 | 2014 |
| Cross S RD over Mizpah Creek 020 | Good | 40.4 ft | 100 | 2013 |
| Brewer RD over Timber Creek 017 | Good | 131.2 ft | 100 | 1996 |
| Powderville RD E over North Fork Horse Creek | Good | 87.9 ft | 48 | 2023 |
| S 484 over Bear Creek | Good | 33.5 ft | 20 | 1999 |
| S 484 over Bear Creek | Good | 29.9 ft | 20 | 1999 |