Santa Isabel Ave over State Route 55
FairOrange County, California · 12-ORA-055-R3.27-CMS · Structure no. 55 0662
- Built
- 1990
- 35 years old
- Condition
- Fair
- inspected February 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 244 ft
- 2 main spans
- Daily traffic
- 5,000
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
Santa Isabel Ave over State Route 55 is a prestressed concrete continuous box beam or girders - multiple carrying Santa Isabel Ave over State Route 55 in Orange County, California. It was built in 1990, so it is 35 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 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 5,000 vehicles a day, roughly 1% of them trucks, projected to reach 6,018 by 2044. The structure is 244 ft (74.4 m) long and 68 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 | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Santa Isabel Ave over State Route 55 built?
It was built in 1990, making it 35 years old in 2025.
What condition is Santa Isabel Ave 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 February 2024.
How much traffic does Santa Isabel Ave over State Route 55 carry?
About 5,000 vehicles per day (2014 count), of which roughly 1% are trucks.
How long is Santa Isabel Ave over State Route 55?
The structure is 244 ft (74.4 m) long with a longest span of 120 ft (36.6 m) and a deck 68 ft wide.
Who owns Santa Isabel Ave over State Route 55?
It is owned by the State Highway Agency.