I-25 Sbl over Unnamed Draw
FairPlatte County, Wyoming · Chugwater - Wheatland · Structure no. ADG
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected April 2024
- Type
- Slab
- Concrete Continuous
- Length
- 61 ft
- 3 main spans
- Daily traffic
- 3,350
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-25 Sbl over Unnamed Draw is a concrete continuous slab carrying I-25 Sbl over Unnamed Draw in Platte County, Wyoming. It was built in 1958, so it is 67 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 3,350 vehicles a day, roughly 23% of them trucks, projected to reach 4,690 by 2043. The structure is 61 ft (18.6 m) long and 41 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-25 Sbl over Unnamed Draw built?
It was built in 1958, making it 67 years old in 2025.
What condition is I-25 Sbl over Unnamed Draw 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 April 2024.
How much traffic does I-25 Sbl over Unnamed Draw carry?
About 3,350 vehicles per day (2024 count), of which roughly 23% are trucks.
How long is I-25 Sbl over Unnamed Draw?
The structure is 61 ft (18.6 m) long with a longest span of 23 ft (6.9 m) and a deck 41 ft wide.
Who owns I-25 Sbl over Unnamed Draw?
It is owned by the State Highway Agency.