State Route 1 over Los Angeles River
GoodLos Angeles County, California · 07-LA-001-7.11-LBCH · Structure no. 53 0341
- Built
- 1957
- 68 years old
- Condition
- Good
- inspected December 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 625 ft
- 7 main spans
- Daily traffic
- 38,250
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 1 over Los Angeles River is a concrete continuous box beam or girders - multiple carrying State Route 1 over Los Angeles River in Los Angeles County, California. It was built in 1957, so it is 68 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 38,250 vehicles a day, roughly 11% of them trucks, projected to reach 77,684 by 2040. The structure is 625 ft (190.5 m) long and 79 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. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 1 over Los Angeles River built?
It was built in 1957, making it 68 years old in 2025.
What condition is State Route 1 over Los Angeles River 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 December 2023.
How much traffic does State Route 1 over Los Angeles River carry?
About 38,250 vehicles per day (2021 count), of which roughly 11% are trucks.
How long is State Route 1 over Los Angeles River?
The structure is 625 ft (190.5 m) long with a longest span of 94 ft (28.7 m) and a deck 79 ft wide.
Who owns State Route 1 over Los Angeles River?
It is owned by the State Highway Agency.