Mariano ST over Calabasas Creek
GoodLos Angeles County, California · 0.15 M W/O Woodlake Ave · Structure no. 53C1243
- Built
- 1968
- 57 years old
- Condition
- Good
- inspected November 2023
- Type
- Culvert
- Concrete
- Length
- 47 ft
- 1 main span
- Daily traffic
- 1,200
- 2016 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Mariano ST over Calabasas Creek is a concrete culvert carrying Mariano ST over Calabasas Creek in Los Angeles County, California. It was built in 1968, so it is 57 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 1,200 vehicles a day, roughly 1% of them trucks, projected to reach 2,306 by 2042. The structure is 47 ft (14.3 m) long and 60 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mariano ST over Calabasas Creek built?
It was built in 1968, making it 57 years old in 2025.
What condition is Mariano ST over Calabasas 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 November 2023.
How much traffic does Mariano ST over Calabasas Creek carry?
About 1,200 vehicles per day (2016 count), of which roughly 1% are trucks.
How long is Mariano ST over Calabasas Creek?
The structure is 47 ft (14.3 m) long with a longest span of 35 ft (10.7 m) and a deck 60 ft wide.
Who owns Mariano ST over Calabasas Creek?
It is owned by the City or Municipal Highway Agency.