I-25 Nbl and Sbl over Rock Creek
FairPlatte County, Wyoming · Chugwater - Wheatland · Structure no. CBU
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected January 2025
- Type
- Culvert
- Concrete Continuous
- Length
- 30 ft
- 3 main spans
- Daily traffic
- 3,865
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-25 Nbl and Sbl over Rock Creek is a concrete continuous culvert carrying I-25 Nbl and Sbl over Rock Creek in Platte County, Wyoming. It was built in 1975, 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 3,865 vehicles a day, roughly 19% of them trucks, projected to reach 5,411 by 2043. The structure is 30 ft (9.2 m) long. If it were closed, the detour would be 3.1 mi (5 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-25 Nbl and Sbl over Rock Creek built?
It was built in 1975, making it 50 years old in 2025.
What condition is I-25 Nbl and Sbl over Rock Creek 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 January 2025.
How much traffic does I-25 Nbl and Sbl over Rock Creek carry?
About 3,865 vehicles per day (2024 count), of which roughly 19% are trucks.
How long is I-25 Nbl and Sbl over Rock Creek?
The structure is 30 ft (9.2 m) long with a longest span of 9 ft (2.7 m).
Who owns I-25 Nbl and Sbl over Rock Creek?
It is owned by the State Highway Agency.