1st ST over State Route 55 & Ramps
FairOrange County, California · 12-ORA-055-10.80-TUS · Structure no. 55 0647
- Built
- 1995
- 30 years old
- Condition
- Fair
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 346 ft
- 4 main spans
- Daily traffic
- 17,700
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
1st ST over State Route 55 & Ramps is a prestressed concrete continuous box beam or girders - multiple carrying 1st ST over State Route 55 & Ramps in Orange County, California. It was built in 1995, so it is 30 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 17,700 vehicles a day, roughly 4% of them trucks, projected to reach 25,504 by 2046. The structure is 346 ft (105.6 m) long and 90 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 1st ST over State Route 55 & Ramps built?
It was built in 1995, making it 30 years old in 2025.
What condition is 1st ST over State Route 55 & Ramps 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 1st ST over State Route 55 & Ramps carry?
About 17,700 vehicles per day (2024 count), of which roughly 4% are trucks.
How long is 1st ST over State Route 55 & Ramps?
The structure is 346 ft (105.6 m) long with a longest span of 115 ft (35.1 m) and a deck 90 ft wide.
Who owns 1st ST over State Route 55 & Ramps?
It is owned by the State Highway Agency.