State Route 55 over BNSF RY AMTRAK Metrolink
FairOrange County, California · 12-ORA-055-R9.52-SA · Structure no. 55 0026
- Built
- 1964
- 61 years old, rebuilt 1988
- Condition
- Fair
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 175 ft
- 3 main spans
- Daily traffic
- 272,000
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 55 over BNSF RY AMTRAK Metrolink is a concrete continuous box beam or girders - multiple carrying State Route 55 over BNSF RY AMTRAK Metrolink in Orange County, California. It was built in 1964 and reconstructed in 1988, so it is 61 years old, older 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 272,000 vehicles a day, roughly 7% of them trucks, projected to reach 325,000 by 2044. The structure is 175 ft (53.3 m) long and 188 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 55 over BNSF RY AMTRAK Metrolink built?
It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1988.
What condition is State Route 55 over BNSF RY AMTRAK Metrolink 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 April 2024.
How much traffic does State Route 55 over BNSF RY AMTRAK Metrolink carry?
About 272,000 vehicles per day (2022 count), of which roughly 7% are trucks.
How long is State Route 55 over BNSF RY AMTRAK Metrolink?
The structure is 175 ft (53.3 m) long with a longest span of 87 ft (26.5 m) and a deck 188 ft wide.
Who owns State Route 55 over BNSF RY AMTRAK Metrolink?
It is owned by the State Highway Agency.