I-25 Sbl over South Main Street
FairJohnson County, Wyoming · Buffalo Marginal · Structure no. ALS
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected May 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 164 ft
- 3 main spans
- Daily traffic
- 1,819
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-25 Sbl over South Main Street is a concrete continuous tee beam carrying I-25 Sbl over South Main Street in Johnson County, Wyoming. It was built in 1971, so it is 54 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 1,819 vehicles a day, roughly 30% of them trucks, projected to reach 2,547 by 2043. The structure is 164 ft (50 m) long and 43 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 | 8 Very Good | No problems noted. |
| 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 I-25 Sbl over South Main Street built?
It was built in 1971, making it 54 years old in 2025.
What condition is I-25 Sbl over South Main Street 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 2024.
How much traffic does I-25 Sbl over South Main Street carry?
About 1,819 vehicles per day (2024 count), of which roughly 30% are trucks.
How long is I-25 Sbl over South Main Street?
The structure is 164 ft (50 m) long with a longest span of 62 ft (18.9 m) and a deck 43 ft wide.
Who owns I-25 Sbl over South Main Street?
It is owned by the State Highway Agency.