State Route 27 over Topanga Creek
GoodLos Angeles County, California · 07-LA-027-4.20 · Structure no. 53 0144
- Built
- 1934
- 91 years old
- Condition
- Good
- inspected January 2024
- Type
- Arch - Deck
- Concrete
- Length
- 138 ft
- 3 main spans
- Daily traffic
- 15,050
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 27 over Topanga Creek is a concrete arch - deck carrying State Route 27 over Topanga Creek 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 15,050 vehicles a day, roughly 3% of them trucks, projected to reach 19,642 by 2046. The structure is 138 ft (42.1 m) long and 36 ft wide. If it were closed, the detour would be 23 mi (37 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 27 over Topanga Creek built?
It was built in 1934, making it 91 years old in 2025.
What condition is State Route 27 over Topanga Creek 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 January 2024.
How much traffic does State Route 27 over Topanga Creek carry?
About 15,050 vehicles per day (2014 count), of which roughly 3% are trucks.
How long is State Route 27 over Topanga Creek?
The structure is 138 ft (42.1 m) long with a longest span of 70 ft (21.3 m) and a deck 36 ft wide.
Who owns State Route 27 over Topanga Creek?
It is owned by the State Highway Agency.