US 87 over Musselshell River
Good Condition30 years old2,799 vehicles/day
Location
| State | Montana |
| County | Musselshell |
| Location | Roundup |
| Carries | US 87 |
| Crosses | Musselshell River |
| Coordinates | 46.42796, -108.57016 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 274.9 ft (83.8 m) |
| Max Span | 91.9 ft (28 m) |
| Deck Width | 42.7 ft (13 m) |
| Deck Area | 1089.4 sq m |
| Main Spans | 3 |
| Year Built | 1996 |
Traffic
| Avg Daily Traffic | 2,799 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00016047+05501 |