State Route 39 over Carpenter Canyon
GoodLos Angeles County, California · 07-LA-039-21.45 · Structure no. 53 0116
- Built
- 1933
- 92 years old
- Condition
- Good
- inspected October 2024
- Type
- Tee Beam
- Concrete
- Length
- 50 ft
- 2 main spans
- Daily traffic
- 1,850
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 39 over Carpenter Canyon is a concrete tee beam carrying State Route 39 over Carpenter Canyon in Los Angeles County, California. It was built in 1933, so it is 92 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 1,850 vehicles a day, roughly 4% of them trucks, projected to reach 5,101 by 2041. The structure is 50 ft (15.1 m) long and 36 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. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 39 over Carpenter Canyon built?
It was built in 1933, making it 92 years old in 2025.
What condition is State Route 39 over Carpenter 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 2024.
How much traffic does State Route 39 over Carpenter Canyon carry?
About 1,850 vehicles per day (2017 count), of which roughly 4% are trucks.
How long is State Route 39 over Carpenter Canyon?
The structure is 50 ft (15.1 m) long with a longest span of 24 ft (7.3 m) and a deck 36 ft wide.
Who owns State Route 39 over Carpenter Canyon?
It is owned by the State Highway Agency.