State Route 57 over Arrow HWY
FairLos Angeles County, California · 07-LA-057-R10.74-SDMS · Structure no. 53 1954
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected September 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 170 ft
- 2 main spans
- Daily traffic
- 149,000
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 57 over Arrow HWY is a prestressed concrete continuous box beam or girders - multiple carrying State Route 57 over Arrow HWY in Los Angeles County, California. It was built in 1971, 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 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 149,000 vehicles a day, roughly 5% of them trucks, projected to reach 146,359 by 2045. The structure is 170 ft (51.8 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
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 57 over Arrow HWY built?
It was built in 1971, making it 54 years old in 2025.
What condition is State Route 57 over Arrow HWY 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 September 2024.
How much traffic does State Route 57 over Arrow HWY carry?
About 149,000 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is State Route 57 over Arrow HWY?
The structure is 170 ft (51.8 m) long with a longest span of 84 ft (25.6 m) and a deck 168 ft wide.
Who owns State Route 57 over Arrow HWY?
It is owned by the State Highway Agency.