Wyo 78 over I-80
FairCarbon County, Wyoming · Rawlins Marginal · Structure no. ATU
- Built
- 1963
- 62 years old
- Condition
- Fair
- inspected May 2023
- Type
- Frame
- Concrete Continuous
- Length
- 194 ft
- 4 main spans
- Daily traffic
- 3,858
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Wyo 78 over I-80 is a concrete continuous frame carrying Wyo 78 over I-80 in Carbon County, Wyoming. It was built in 1963, so it is 62 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 3,858 vehicles a day, projected to reach 5,401 by 2043. The structure is 194 ft (59.1 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Wyo 78 over I-80 built?
It was built in 1963, making it 62 years old in 2025.
What condition is Wyo 78 over I-80 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 May 2023.
How much traffic does Wyo 78 over I-80 carry?
About 3,858 vehicles per day (2024 count).
How long is Wyo 78 over I-80?
The structure is 194 ft (59.1 m) long with a longest span of 57 ft (17.5 m) and a deck 31 ft wide.
Who owns Wyo 78 over I-80?
It is owned by the State Highway Agency.