State Route 22 over Knott Ave
FairOrange County, California · 12-ORA-022-R2.69-GGR · Structure no. 55 0366
- Built
- 1966
- 59 years old, rebuilt 2007
- Condition
- Fair
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 211 ft
- 4 main spans
- Daily traffic
- 160,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 22 over Knott Ave is a concrete continuous box beam or girders - multiple carrying State Route 22 over Knott Ave in Orange County, California. It was built in 1966 and reconstructed in 2007, so it is 59 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 160,000 vehicles a day, roughly 9% of them trucks, projected to reach 200,000 by 2045. The structure is 211 ft (64.4 m) long and 147 ft wide. If it were closed, the detour would be 1.9 mi (3 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 State Route 22 over Knott Ave built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2007.
What condition is State Route 22 over Knott 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 April 2024.
How much traffic does State Route 22 over Knott Ave carry?
About 160,000 vehicles per day (2020 count), of which roughly 9% are trucks.
How long is State Route 22 over Knott Ave?
The structure is 211 ft (64.4 m) long with a longest span of 73 ft (22.2 m) and a deck 147 ft wide.
Who owns State Route 22 over Knott Ave?
It is owned by the State Highway Agency.