I-90 Wbl over Belle Fourche River
FairCrook County, Wyoming · Gillette - Moorcroft · Structure no. BGT
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 227 ft
- 3 main spans
- Daily traffic
- 2,738
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-90 Wbl over Belle Fourche River is a steel continuous stringer/multi-beam or girder carrying I-90 Wbl over Belle Fourche River in Crook County, Wyoming. It was built in 1966, so it is 59 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 2,738 vehicles a day, roughly 20% of them trucks, projected to reach 3,833 by 2043. The structure is 227 ft (69.2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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-90 Wbl over Belle Fourche River built?
It was built in 1966, making it 59 years old in 2025.
What condition is I-90 Wbl over Belle Fourche River 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 June 2023.
How much traffic does I-90 Wbl over Belle Fourche River carry?
About 2,738 vehicles per day (2024 count), of which roughly 20% are trucks.
How long is I-90 Wbl over Belle Fourche River?
The structure is 227 ft (69.2 m) long with a longest span of 88 ft (26.8 m) and a deck 41 ft wide.
Who owns I-90 Wbl over Belle Fourche River?
It is owned by the State Highway Agency.