Wyo 430 over North Alkali Creek
FairSweetwater County, Wyoming · Rock Springs - Colo Line · Structure no. CVX
- Built
- 1956
- 69 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 107 ft
- 3 main spans
- Daily traffic
- 246
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Wyo 430 over North Alkali Creek is a steel continuous stringer/multi-beam or girder carrying Wyo 430 over North Alkali Creek in Sweetwater County, Wyoming. It was built in 1956, so it is 69 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 246 vehicles a day, roughly 22% of them trucks, projected to reach 344 by 2043. The structure is 107 ft (32.6 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 430 over North Alkali Creek built?
It was built in 1956, making it 69 years old in 2025.
What condition is Wyo 430 over North Alkali 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 June 2023.
How much traffic does Wyo 430 over North Alkali Creek carry?
About 246 vehicles per day (2024 count), of which roughly 22% are trucks.
How long is Wyo 430 over North Alkali Creek?
The structure is 107 ft (32.6 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.
Who owns Wyo 430 over North Alkali Creek?
It is owned by the State Highway Agency.