State Route 91 EB over Weir Canyon RD
GoodOrange County, California · 12-ORA-091-R14.43R · Structure no. 55 0505R
- Built
- 1971
- 54 years old, rebuilt 1996
- Condition
- Good
- inspected August 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 156 ft
- 2 main spans
- Daily traffic
- 152,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 91 EB over Weir Canyon RD is a concrete continuous box beam or girders - multiple carrying State Route 91 EB over Weir Canyon RD in Orange County, California. It was built in 1971 and reconstructed in 1996, so it is 54 years old, younger than the California average of 54.8 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 152,000 vehicles a day, projected to reach 176,054 by 2041. The structure is 156 ft (47.5 m) long and 178 ft wide. If it were closed, the detour would be 1.2 mi (2 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 State Route 91 EB over Weir Canyon RD built?
It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1996.
What condition is State Route 91 EB over Weir Canyon RD 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 August 2024.
How much traffic does State Route 91 EB over Weir Canyon RD carry?
About 152,000 vehicles per day (2020 count).
How long is State Route 91 EB over Weir Canyon RD?
The structure is 156 ft (47.5 m) long with a longest span of 79 ft (24.1 m) and a deck 178 ft wide.
Who owns State Route 91 EB over Weir Canyon RD?
It is owned by the State Highway Agency.