Hs Cnty RD 21 over Kirby Creek
FairHot Springs County, Wyoming · 9 Mi. NE of Thermopolis · Structure no. FLP
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected February 2025
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 40 ft
- 1 main span
- Daily traffic
- 229
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Hs Cnty RD 21 over Kirby Creek is a steel stringer/multi-beam or girder carrying Hs Cnty RD 21 over Kirby Creek in Hot Springs County, Wyoming. It was built in 1988, so it is 37 years old, younger 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 229 vehicles a day, roughly 6% of them trucks, projected to reach 321 by 2043. The structure is 40 ft (12.2 m) long and 29 ft wide.
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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Hs Cnty RD 21 over Kirby Creek built?
It was built in 1988, making it 37 years old in 2025.
What condition is Hs Cnty RD 21 over Kirby 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 February 2025.
How much traffic does Hs Cnty RD 21 over Kirby Creek carry?
About 229 vehicles per day (2024 count), of which roughly 6% are trucks.
How long is Hs Cnty RD 21 over Kirby Creek?
The structure is 40 ft (12.2 m) long with a longest span of 37 ft (11.3 m) and a deck 29 ft wide.
Who owns Hs Cnty RD 21 over Kirby Creek?
It is owned by the County Highway Agency.