I-25 Service Road over Unnamed Draw
GoodNatrona County, Wyoming · Bar Nunn North · Structure no. AIY
- Built
- 1948
- 77 years old
- Condition
- Good
- inspected April 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 3 main spans
- Daily traffic
- 85
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-25 Service Road over Unnamed Draw is a concrete continuous culvert carrying I-25 Service Road over Unnamed Draw in Natrona County, Wyoming. It was built in 1948, so it is 77 years old, older than the Wyoming average of 48.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 85 vehicles a day, roughly 13% of them trucks, projected to reach 119 by 2043. The structure is 25 ft (7.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-25 Service Road over Unnamed Draw built?
It was built in 1948, making it 77 years old in 2025.
What condition is I-25 Service Road over Unnamed Draw in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.
How much traffic does I-25 Service Road over Unnamed Draw carry?
About 85 vehicles per day (2024 count), of which roughly 13% are trucks.
How long is I-25 Service Road over Unnamed Draw?
The structure is 25 ft (7.7 m) long with a longest span of 8 ft (2.4 m).
Who owns I-25 Service Road over Unnamed Draw?
It is owned by the State Highway Agency.