Route 55 over Katella Ave
FairOrange County, California · 12-ORA-055-15.24-ORA · Structure no. 55 0324
- Built
- 1961
- 64 years old, rebuilt 2002
- Condition
- Fair
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 186 ft
- 4 main spans
- Daily traffic
- 228,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Route 55 over Katella Ave is a concrete continuous box beam or girders - multiple carrying Route 55 over Katella Ave in Orange County, California. It was built in 1961 and reconstructed in 2002, so it is 64 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 228,000 vehicles a day, roughly 6% of them trucks, projected to reach 275,000 by 2042. The structure is 186 ft (56.6 m) long and 173 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Route 55 over Katella Ave built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2002.
What condition is Route 55 over Katella Ave 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 Route 55 over Katella Ave carry?
About 228,000 vehicles per day (2020 count), of which roughly 6% are trucks.
How long is Route 55 over Katella Ave?
The structure is 186 ft (56.6 m) long with a longest span of 61 ft (18.6 m) and a deck 173 ft wide.
Who owns Route 55 over Katella Ave?
It is owned by the State Highway Agency.