US 87 over Musselshell River
GoodMusselshell County, Montana · Roundup · Structure no. P00016047+05501
- Built
- 1996
- 29 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 275 ft
- 3 main spans
- Daily traffic
- 2,799
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 87 over Musselshell River is a prestressed concrete stringer/multi-beam or girder carrying US 87 over Musselshell River in Musselshell County, Montana. It was built in 1996, so it is 29 years old, younger than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 2,799 vehicles a day, roughly 5% of them trucks, projected to reach 2,939 by 2043. The structure is 275 ft (83.8 m) long and 43 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 87 over Musselshell River built?
It was built in 1996, making it 29 years old in 2025.
What condition is US 87 over Musselshell River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.
How much traffic does US 87 over Musselshell River carry?
About 2,799 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is US 87 over Musselshell River?
The structure is 275 ft (83.8 m) long with a longest span of 92 ft (28 m) and a deck 43 ft wide.
Who owns US 87 over Musselshell River?
It is owned by the State Highway Agency.