State Route 57 over Birch Street
GoodOrange County, California · 12-ORA-057-20.38-BRE · Structure no. 55 0485
- Built
- 1971
- 54 years old, rebuilt 2013
- Condition
- Good
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 174 ft
- 1 main span
- Daily traffic
- 245,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 57 over Birch Street is a prestressed concrete box beam or girders - multiple carrying State Route 57 over Birch Street in Orange County, California. It was built in 1971 and reconstructed in 2013, 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 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 245,000 vehicles a day, roughly 8% of them trucks, projected to reach 310,000 by 2041. The structure is 174 ft (53 m) long and 180 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 57 over Birch Street built?
It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2013.
What condition is State Route 57 over Birch Street 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 June 2024.
How much traffic does State Route 57 over Birch Street carry?
About 245,000 vehicles per day (2020 count), of which roughly 8% are trucks.
How long is State Route 57 over Birch Street?
The structure is 174 ft (53 m) long with a longest span of 171 ft (52.1 m) and a deck 180 ft wide.
Who owns State Route 57 over Birch Street?
It is owned by the State Highway Agency.