US 89 over Snake River
FairTeton County, Wyoming · Bridge over Snake River · Structure no. MGH
- Built
- 2013
- 12 years old
- Condition
- Fair
- inspected August 2024
- Type
- Arch - Deck
- Steel Continuous
- Length
- 780 ft
- 1 main span
- Daily traffic
- 6,183
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US 89 over Snake River is a steel continuous arch - deck carrying US 89 over Snake River in Teton County, Wyoming. It was built in 2013, so it is 12 years old, younger 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 6,183 vehicles a day, roughly 8% of them trucks, projected to reach 8,656 by 2043. The structure is 780 ft (237.7 m) long and 64 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 89 over Snake River built?
It was built in 2013, making it 12 years old in 2025.
What condition is US 89 over Snake 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 August 2024.
How much traffic does US 89 over Snake River carry?
About 6,183 vehicles per day (2024 count), of which roughly 8% are trucks.
How long is US 89 over Snake River?
The structure is 780 ft (237.7 m) long with a longest span of 336 ft (102.4 m) and a deck 64 ft wide.
Who owns US 89 over Snake River?
It is owned by the State Highway Agency.