US 91 over Uprr;redrock Overpass
GoodBannock County, Idaho · 6.7 S. Downey · Structure no. 000000000017481
- Built
- 1995
- 30 years old
- Condition
- Good
- inspected November 2021
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 208 ft
- 3 main spans
- Daily traffic
- 1,600
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 91 over Uprr;redrock Overpass is a prestressed concrete continuous stringer/multi-beam or girder carrying US 91 over Uprr;redrock Overpass in Bannock County, Idaho. It was built in 1995, so it is 30 years old, younger than the Idaho average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,600 vehicles a day, roughly 18% of them trucks, projected to reach 2,400 by 2042. The structure is 208 ft (63.4 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 91 over Uprr;redrock Overpass built?
It was built in 1995, making it 30 years old in 2025.
What condition is US 91 over Uprr;redrock Overpass in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2021.
How much traffic does US 91 over Uprr;redrock Overpass carry?
About 1,600 vehicles per day (2023 count), of which roughly 18% are trucks.
How long is US 91 over Uprr;redrock Overpass?
The structure is 208 ft (63.4 m) long with a longest span of 74 ft (22.6 m) and a deck 43 ft wide.
Who owns US 91 over Uprr;redrock Overpass?
It is owned by the State Highway Agency.