Fourth Street over State Route 55
FairOrange County, California · 12-ORA-055-10.98-SA · Structure no. 55 0650
- Built
- 1992
- 33 years old
- Condition
- Fair
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 290 ft
- 3 main spans
- Daily traffic
- 39,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Fourth Street over State Route 55 is a prestressed concrete continuous box beam or girders - multiple carrying Fourth Street over State Route 55 in Orange County, California. It was built in 1992, so it is 33 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 6 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 39,000 vehicles a day, roughly 4% of them trucks, projected to reach 59,062 by 2042. The structure is 290 ft (88.4 m) long and 114 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Fourth Street over State Route 55 built?
It was built in 1992, making it 33 years old in 2025.
What condition is Fourth 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 March 2024.
How much traffic does Fourth Street over State Route 55 carry?
About 39,000 vehicles per day (2020 count), of which roughly 4% are trucks.
How long is Fourth Street over State Route 55?
The structure is 290 ft (88.4 m) long with a longest span of 123 ft (37.5 m) and a deck 114 ft wide.
Who owns Fourth Street over State Route 55?
It is owned by the State Highway Agency.