Wyo 345 over Slater Creek
GoodPosted for loadSheridan County, Wyoming · Montana Line - Sheridan · Structure no. BAU
- Built
- 1955
- 70 years old
- Condition
- Good
- inspected June 2024
- Type
- Slab
- Concrete Continuous
- Length
- 114 ft
- 5 main spans
- Daily traffic
- 747
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Wyo 345 over Slater Creek is a concrete continuous slab carrying Wyo 345 over Slater Creek in Sheridan County, Wyoming. It was built in 1955, so it is 70 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. Its operating status is: posted for load restriction.
It carries about 747 vehicles a day, roughly 7% of them trucks, projected to reach 1,046 by 2043. The structure is 114 ft (34.7 m) long and 35 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Wyo 345 over Slater Creek built?
It was built in 1955, making it 70 years old in 2025.
What condition is Wyo 345 over Slater 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 June 2024.
How much traffic does Wyo 345 over Slater Creek carry?
About 747 vehicles per day (2024 count), of which roughly 7% are trucks.
How long is Wyo 345 over Slater Creek?
The structure is 114 ft (34.7 m) long with a longest span of 24 ft (7.3 m) and a deck 35 ft wide.
Who owns Wyo 345 over Slater Creek?
It is owned by the State Highway Agency.