Main Street over State Route 55
FairOrange County, California · 12-ORA-055-10.54-TUS · Structure no. 55 0318
- Built
- 1962
- 63 years old
- Condition
- Fair
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 341 ft
- 6 main spans
- Daily traffic
- 11,900
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Main Street over State Route 55 is a concrete continuous box beam or girders - multiple carrying Main Street over State Route 55 in Orange County, California. It was built in 1962, so it is 63 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 11,900 vehicles a day, roughly 1% of them trucks, projected to reach 15,801 by 2041. The structure is 341 ft (103.9 m) long and 58 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 | 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 Main Street over State Route 55 built?
It was built in 1962, making it 63 years old in 2025.
What condition is Main Street over State Route 55 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 Main Street over State Route 55 carry?
About 11,900 vehicles per day (2019 count), of which roughly 1% are trucks.
How long is Main Street over State Route 55?
The structure is 341 ft (103.9 m) long with a longest span of 65 ft (19.8 m) and a deck 58 ft wide.
Who owns Main Street over State Route 55?
It is owned by the State Highway Agency.