Wyo 430 over South Alkali Creek
FairSweetwater County, Wyoming · Rock Springs-Hiawatha · Structure no. INK
- Built
- 1952
- 73 years old
- Condition
- Fair
- inspected August 2024
- Type
- Culvert
- Steel
- Length
- 32 ft
- 2 main spans
- Daily traffic
- 246
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Wyo 430 over South Alkali Creek is a steel culvert carrying Wyo 430 over South Alkali Creek in Sweetwater County, Wyoming. It was built in 1952, so it is 73 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 32 ft (9.9 m) long. If it were closed, the detour would be 100 mi (161 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Wyo 430 over South Alkali Creek built?
It was built in 1952, making it 73 years old in 2025.
What condition is Wyo 430 over South 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 August 2024.
How much traffic does Wyo 430 over South Alkali Creek carry?
About 246 vehicles per day (2024 count), of which roughly 22% are trucks.
How long is Wyo 430 over South Alkali Creek?
The structure is 32 ft (9.9 m) long with a longest span of 14 ft (4.2 m).
Who owns Wyo 430 over South Alkali Creek?
It is owned by the State Highway Agency.