State Route 91 over Obispo Ave
GoodLos Angeles County, California · 07-LA-091-R13.86-LBCH · Structure no. 53 2128
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected July 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 115 ft
- 1 main span
- Daily traffic
- 270,000
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 91 over Obispo Ave is a prestressed concrete box beam or girders - multiple carrying State Route 91 over Obispo Ave in Los Angeles County, California. It was built in 1970, 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 270,000 vehicles a day, roughly 12% of them trucks, projected to reach 285,000 by 2040. The structure is 115 ft (35.1 m) long and 168 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 Obispo Ave built?
It was built in 1970, making it 55 years old in 2025.
What condition is State Route 91 over Obispo Ave 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 July 2023.
How much traffic does State Route 91 over Obispo Ave carry?
About 270,000 vehicles per day (2017 count), of which roughly 12% are trucks.
How long is State Route 91 over Obispo Ave?
The structure is 115 ft (35.1 m) long with a longest span of 112 ft (34.1 m) and a deck 168 ft wide.
Who owns State Route 91 over Obispo Ave?
It is owned by the State Highway Agency.