US 310 over Shoshone River
FairBig Horn County, Wyoming · Lovell - Deaver · Structure no. BSO
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 294 ft
- 4 main spans
- Daily traffic
- 4,224
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US 310 over Shoshone River is a steel continuous stringer/multi-beam or girder carrying US 310 over Shoshone River in Big Horn County, Wyoming. It was built in 1965, so it is 60 years old, older than the Wyoming average of 48.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 4,224 vehicles a day, roughly 5% of them trucks, projected to reach 5,914 by 2043. The structure is 294 ft (89.6 m) long and 67 ft wide. If it were closed, the detour would be 47.8 mi (77 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 310 over Shoshone River built?
It was built in 1965, making it 60 years old in 2025.
What condition is US 310 over Shoshone River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.
How much traffic does US 310 over Shoshone River carry?
About 4,224 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is US 310 over Shoshone River?
The structure is 294 ft (89.6 m) long with a longest span of 79 ft (24.1 m) and a deck 67 ft wide.
Who owns US 310 over Shoshone River?
It is owned by the State Highway Agency.