State Route 39 over Chapman Canyon
GoodLos Angeles County, California · 07-LA-039-18.36 · Structure no. 53 0114
- Built
- 1934
- 91 years old
- Condition
- Good
- inspected October 2024
- Type
- Tee Beam
- Concrete
- Length
- 70 ft
- 3 main spans
- Daily traffic
- 2,350
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 39 over Chapman Canyon is a concrete tee beam carrying State Route 39 over Chapman Canyon in Los Angeles County, California. It was built in 1934, so it is 91 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 2,350 vehicles a day, roughly 4% of them trucks, projected to reach 7,358 by 2041. The structure is 70 ft (21.4 m) long and 37 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 Chapman Canyon built?
It was built in 1934, making it 91 years old in 2025.
What condition is State Route 39 over Chapman 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 Chapman Canyon carry?
About 2,350 vehicles per day (2017 count), of which roughly 4% are trucks.
How long is State Route 39 over Chapman Canyon?
The structure is 70 ft (21.4 m) long with a longest span of 30 ft (9.1 m) and a deck 37 ft wide.
Who owns State Route 39 over Chapman Canyon?
It is owned by the State Highway Agency.