Interstate 210 over Duncannon Avenue
GoodLos Angeles County, California · 07-LA-210-R35.52-DRT · Structure no. 53 1823
- Built
- 1966
- 59 years old, rebuilt 2012
- Condition
- Good
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Concrete
- Length
- 63 ft
- 1 main span
- Daily traffic
- 258,000
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 210 over Duncannon Avenue is a concrete box beam or girders - multiple carrying Interstate 210 over Duncannon Avenue in Los Angeles County, California. It was built in 1966 and reconstructed in 2012, 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 258,000 vehicles a day, roughly 8% of them trucks, projected to reach 278,330 by 2043. The structure is 63 ft (19.1 m) long and 184 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 Interstate 210 over Duncannon Avenue built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2012.
What condition is Interstate 210 over Duncannon Avenue in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.
How much traffic does Interstate 210 over Duncannon Avenue carry?
About 258,000 vehicles per day (2017 count), of which roughly 8% are trucks.
How long is Interstate 210 over Duncannon Avenue?
The structure is 63 ft (19.1 m) long with a longest span of 60 ft (18.3 m) and a deck 184 ft wide.
Who owns Interstate 210 over Duncannon Avenue?
It is owned by the State Highway Agency.