Lassen ST over Santa Susana Creek
GoodLos Angeles County, California · 0.1 MI W of Shoup Ave · Structure no. 53C1725
- Built
- 1967
- 58 years old
- Condition
- Good
- inspected July 2024
- Type
- Culvert
- Concrete
- Length
- 26 ft
- 1 main span
- Daily traffic
- 5,000
- 2018 count
- Owner
- Local
- Other Local Agency
About this bridge
Lassen ST over Santa Susana Creek is a concrete culvert carrying Lassen ST over Santa Susana Creek in Los Angeles County, California. It was built in 1967, so it is 58 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 5,000 vehicles a day, roughly 1% of them trucks, projected to reach 6,182 by 2046. The structure is 26 ft (7.9 m) long. 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 Lassen ST over Santa Susana Creek built?
It was built in 1967, making it 58 years old in 2025.
What condition is Lassen ST over Santa Susana 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 July 2024.
How much traffic does Lassen ST over Santa Susana Creek carry?
About 5,000 vehicles per day (2018 count), of which roughly 1% are trucks.
How long is Lassen ST over Santa Susana Creek?
The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m).
Who owns Lassen ST over Santa Susana Creek?
It is owned by the Other Local Agency and maintained by the City or Municipal Highway Agency.