State Route 91 over State Route 90
GoodOrange County, California · 12-ORA-091-R11.53-ANA · Structure no. 55 0474
- Built
- 1970
- 55 years old, rebuilt 1994
- Condition
- Good
- inspected August 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 155 ft
- 1 main span
- Daily traffic
- 292,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 91 over State Route 90 is a prestressed concrete box beam or girders - multiple carrying State Route 91 over State Route 90 in Orange County, California. It was built in 1970 and reconstructed in 1994, so it is 55 years old, older 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 292,000 vehicles a day, projected to reach 344,000 by 2042. The structure is 155 ft (47.2 m) long and 262 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 over State Route 90 built?
It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1994.
What condition is State Route 91 over State Route 90 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 over State Route 90 carry?
About 292,000 vehicles per day (2020 count).
How long is State Route 91 over State Route 90?
The structure is 155 ft (47.2 m) long with a longest span of 152 ft (46.3 m) and a deck 262 ft wide.
Who owns State Route 91 over State Route 90?
It is owned by the State Highway Agency.