US 89 over Flat Creek
GoodTeton County, Wyoming · Hoback JCT - Jackson · Structure no. MYI
- Built
- 2019
- 6 years old
- Condition
- Good
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 140 ft
- 3 main spans
- Daily traffic
- 11,746
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US 89 over Flat Creek is a steel continuous stringer/multi-beam or girder carrying US 89 over Flat Creek in Teton County, Wyoming. It was built in 2019, so it is 6 years old, younger than the Wyoming average of 48.4 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 11,746 vehicles a day, roughly 5% of them trucks, projected to reach 16,444 by 2043. The structure is 140 ft (42.7 m) long and 89 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 8 Very Good | No problems noted. |
| 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 Flat Creek built?
It was built in 2019, making it 6 years old in 2025.
What condition is US 89 over Flat Creek 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 August 2023.
How much traffic does US 89 over Flat Creek carry?
About 11,746 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is US 89 over Flat Creek?
The structure is 140 ft (42.7 m) long with a longest span of 70 ft (21.3 m) and a deck 89 ft wide.
Who owns US 89 over Flat Creek?
It is owned by the State Highway Agency.