State Route 91 over Main Street
FairLos Angeles County, California · 07-LA-091-R6.90-CRSN · Structure no. 53 2547
- Built
- 1974
- 51 years old, rebuilt 1985
- Condition
- Fair
- inspected May 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 148 ft
- 1 main span
- Daily traffic
- 197,000
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 91 over Main Street is a prestressed concrete box beam or girders - multiple carrying State Route 91 over Main Street in Los Angeles County, California. It was built in 1974 and reconstructed in 1985, so it is 51 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 197,000 vehicles a day, roughly 6% of them trucks, projected to reach 129,295 by 2040. The structure is 148 ft (45.1 m) long and 196 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 91 over Main Street built?
It was built in 1974, making it 51 years old in 2025. It was reconstructed in 1985.
What condition is State Route 91 over Main Street 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 May 2023.
How much traffic does State Route 91 over Main Street carry?
About 197,000 vehicles per day (2017 count), of which roughly 6% are trucks.
How long is State Route 91 over Main Street?
The structure is 148 ft (45.1 m) long with a longest span of 148 ft (45.1 m) and a deck 196 ft wide.
Who owns State Route 91 over Main Street?
It is owned by the State Highway Agency.