IRR BIA RTE 187 over Bannock Creek
FairPower County, Idaho · .4K N&.8 K W.Of 161 & I15 · Structure no. 00000000000P437
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 83 ft
- 1 main span
- Daily traffic
- 55
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 187 over Bannock Creek is a prestressed concrete stringer/multi-beam or girder carrying IRR BIA RTE 187 over Bannock Creek in Power County, Idaho. It was built in 1971, so it is 54 years old, older than the Idaho average of 45.3 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 55 vehicles a day, roughly 10% of them trucks, projected to reach 120 by 2043. The structure is 83 ft (25.4 m) long and 30 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 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 IRR BIA RTE 187 over Bannock Creek built?
It was built in 1971, making it 54 years old in 2025.
What condition is IRR BIA RTE 187 over Bannock 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 IRR BIA RTE 187 over Bannock Creek carry?
About 55 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is IRR BIA RTE 187 over Bannock Creek?
The structure is 83 ft (25.4 m) long with a longest span of 81 ft (24.8 m) and a deck 30 ft wide.
Who owns IRR BIA RTE 187 over Bannock Creek?
It is owned by the Bureau of Indian Affairs.