Wyo 310 over I-25
FairPlatte County, Wyoming · Wheatland Marginal · Structure no. CGT
- Built
- 1975
- 50 years old, rebuilt 2004
- Condition
- Fair
- inspected March 2024
- Type
- Frame
- Steel Continuous
- Length
- 230 ft
- 3 main spans
- Daily traffic
- 1,453
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Wyo 310 over I-25 is a steel continuous frame carrying Wyo 310 over I-25 in Platte County, Wyoming. It was built in 1975 and reconstructed in 2004, so it is 50 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 1,453 vehicles a day, roughly 12% of them trucks, projected to reach 2,034 by 2043. The structure is 230 ft (70.1 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 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 310 over I-25 built?
It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2004.
What condition is Wyo 310 over I-25 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 March 2024.
How much traffic does Wyo 310 over I-25 carry?
About 1,453 vehicles per day (2024 count), of which roughly 12% are trucks.
How long is Wyo 310 over I-25?
The structure is 230 ft (70.1 m) long with a longest span of 103 ft (31.4 m) and a deck 49 ft wide.
Who owns Wyo 310 over I-25?
It is owned by the State Highway Agency.