State Route 39 over San Gabriel Canyon
GoodLos Angeles County, California · 07-LA-039-21.67 · Structure no. 53 3096R
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected October 2022
- Type
- Slab
- Concrete Continuous
- Length
- 67 ft
- 4 main spans
- Daily traffic
- 850
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 39 over San Gabriel Canyon is a concrete continuous slab carrying State Route 39 over San Gabriel Canyon in Los Angeles County, California. It was built in 2016, so it is 9 years old, younger 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 850 vehicles a day, roughly 4% of them trucks, projected to reach 2,542 by 2040. The structure is 67 ft (20.4 m) long and 15 ft wide. If it were closed, the detour would be 123.7 mi (199 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 State Route 39 over San Gabriel Canyon built?
It was built in 2016, making it 9 years old in 2025.
What condition is State Route 39 over San Gabriel Canyon 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 October 2022.
How much traffic does State Route 39 over San Gabriel Canyon carry?
About 850 vehicles per day (2017 count), of which roughly 4% are trucks.
How long is State Route 39 over San Gabriel Canyon?
The structure is 67 ft (20.4 m) long with a longest span of 15 ft (4.6 m) and a deck 15 ft wide.
Who owns State Route 39 over San Gabriel Canyon?
It is owned by the State Highway Agency.