| Harvey RD over Musselshell River 018 | Poor | 143.0 ft | 100 | 1916 |
| US 12 over Willow Creek | Fair | 21.7 ft | 712 | 1999 |
| US 12 over Dean Creek | Fair | 77.1 ft | 441 | 1935 |
| US 12 over Currant Creek | Fair | 93.5 ft | 441 | 1936 |
| US 12 over Drainage | Fair | 24.3 ft | 360 | 2003 |
| Goulding Creek RD over Musselshell River | Fair | 149.9 ft | 247 | 1949 |
| 4-h RD over Musselshell River 008 | Fair | 150.9 ft | 208 | 1970 |
| Goulding Creek RD over Harper`s Coulee | Fair | 39.0 ft | 137 | 1954 |
| Harvey RD over Musselshell River 024 | Fair | 120.4 ft | 100 | 2013 |
| Dean Creek RD over Musselshell River 004 | Fair | 131.9 ft | 100 | 1988 |
| County Road 548 over Musselshell River 025 | Fair | 116.5 ft | 100 | 2013 |
| Musselshell RD over Musselshell River 015 | Fair | 143.0 ft | 34 | 1916 |
| US 87 over Musselshell River | Good | 274.9 ft | 2,799 | 1996 |
| US 87 over Park Coulee | Good | 66.9 ft | 2,548 | 1995 |
| US 87 over Razor Creek | Good | 154.9 ft | 2,548 | 1995 |
| US 87 over South Willow Creek | Good | 89.9 ft | 1,223 | 1976 |
| US 12 over Drainage | Good | 24.0 ft | 480 | 2003 |
| US 12 over Drainage | Good | 26.6 ft | 441 | 2006 |
| US 12 over Horsethief Creek | Good | 91.2 ft | 440 | 2015 |
| US 12 over Stockpass-drainage | Good | 27.2 ft | 360 | 2003 |
| S Musselshell RD over Musselshell River | Good | 192.9 ft | 157 | 1960 |
| Queens Point RD over Musselshell River 019 | Good | 211.9 ft | 100 | 2017 |
| Farrel ST over Half Breed Creek | Good | 78.1 ft | 100 | 2021 |
| Number 4 RD over Mussleshell River 011 | Good | 169.0 ft | 100 | 1995 |
| E Parrot Creek RD over Musselshell River 012 | Good | 174.9 ft | 81 | 2016 |
| Melstone-custer RD over Musselshell River 017 | Good | 153.9 ft | 54 | 1992 |
| Ragged Point RD over Drainage | Good | 74.5 ft | 36 | 2015 |
| Majerus RD over Bull Mtn Rr 023 | Good | 224.1 ft | 36 | 2009 |