Wyo 59 over Belle Fourche River
GoodCampbell County, Wyoming · Douglas-Gillette Road · Structure no. FBP
- Built
- 1984
- 41 years old
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 150 ft
- 3 main spans
- Daily traffic
- 4,826
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Wyo 59 over Belle Fourche River is a steel continuous stringer/multi-beam or girder carrying Wyo 59 over Belle Fourche River in Campbell County, Wyoming. It was built in 1984, so it is 41 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 4,826 vehicles a day, roughly 24% of them trucks, projected to reach 6,756 by 2043. The structure is 150 ft (45.7 m) long and 42 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 8 Very Good | No problems noted. |
| 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 Wyo 59 over Belle Fourche River built?
It was built in 1984, making it 41 years old in 2025.
What condition is Wyo 59 over Belle Fourche River 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 July 2024.
How much traffic does Wyo 59 over Belle Fourche River carry?
About 4,826 vehicles per day (2024 count), of which roughly 24% are trucks.
How long is Wyo 59 over Belle Fourche River?
The structure is 150 ft (45.7 m) long with a longest span of 57 ft (17.4 m) and a deck 42 ft wide.
Who owns Wyo 59 over Belle Fourche River?
It is owned by the State Highway Agency.