IRR BIA RTE 20 over Mill Creek
FairFremont County, Wyoming · 2.1KM S. 17 MI Road · Structure no. 00000000000C841
- Built
- 2010
- 15 years old
- Condition
- Fair
- inspected May 2024
- Type
- Channel Beam
- Prestressed Concrete
- Length
- 58 ft
- 1 main span
- Daily traffic
- 427
- 2022 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 20 over Mill Creek is a prestressed concrete channel beam carrying IRR BIA RTE 20 over Mill Creek in Fremont County, Wyoming. It was built in 2010, so it is 15 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 427 vehicles a day, roughly 5% of them trucks, projected to reach 500 by 2042. The structure is 58 ft (17.6 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR BIA RTE 20 over Mill Creek built?
It was built in 2010, making it 15 years old in 2025.
What condition is IRR BIA RTE 20 over Mill 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 May 2024.
How much traffic does IRR BIA RTE 20 over Mill Creek carry?
About 427 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is IRR BIA RTE 20 over Mill Creek?
The structure is 58 ft (17.6 m) long with a longest span of 56 ft (17 m) and a deck 36 ft wide.
Who owns IRR BIA RTE 20 over Mill Creek?
It is owned by the Bureau of Indian Affairs.