I-25 Sbl over South Fork Castle Creek
GoodNatrona County, Wyoming · Casper - Kaycee · Structure no. DLZ
- Built
- 1981
- 44 years old
- Condition
- Good
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 232 ft
- 3 main spans
- Daily traffic
- 1,520
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-25 Sbl over South Fork Castle Creek is a steel continuous stringer/multi-beam or girder carrying I-25 Sbl over South Fork Castle Creek in Natrona County, Wyoming. It was built in 1981, so it is 44 years old, younger 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 1,520 vehicles a day, roughly 28% of them trucks, projected to reach 2,128 by 2043. The structure is 232 ft (70.7 m) long and 45 ft wide. 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 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 Fork Castle Creek built?
It was built in 1981, making it 44 years old in 2025.
What condition is I-25 Sbl over South Fork Castle Creek 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 2024.
How much traffic does I-25 Sbl over South Fork Castle Creek carry?
About 1,520 vehicles per day (2024 count), of which roughly 28% are trucks.
How long is I-25 Sbl over South Fork Castle Creek?
The structure is 232 ft (70.7 m) long with a longest span of 89 ft (27.1 m) and a deck 45 ft wide.
Who owns I-25 Sbl over South Fork Castle Creek?
It is owned by the State Highway Agency.