I-80 Wbl over Wyo 377
FairSweetwater County, Wyoming · Rock Springs - Rawlins · Structure no. AQZ
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected June 2023
- Type
- Slab
- Concrete Continuous
- Length
- 84 ft
- 3 main spans
- Daily traffic
- 7,131
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-80 Wbl over Wyo 377 is a concrete continuous slab carrying I-80 Wbl over Wyo 377 in Sweetwater County, Wyoming. It was built in 1964, so it is 61 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 5 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 7,131 vehicles a day, roughly 56% of them trucks, projected to reach 9,983 by 2043. The structure is 84 ft (25.6 m) long and 41 ft wide.
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-80 Wbl over Wyo 377 built?
It was built in 1964, making it 61 years old in 2025.
What condition is I-80 Wbl over Wyo 377 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 June 2023.
How much traffic does I-80 Wbl over Wyo 377 carry?
About 7,131 vehicles per day (2024 count), of which roughly 56% are trucks.
How long is I-80 Wbl over Wyo 377?
The structure is 84 ft (25.6 m) long with a longest span of 35 ft (10.7 m) and a deck 41 ft wide.
Who owns I-80 Wbl over Wyo 377?
It is owned by the State Highway Agency.