State Route 1 over Marina Ditch
GoodLos Angeles County, California · 07-LA-001-30.70-LA · Structure no. 53 0776
- Built
- 1932
- 93 years old
- Condition
- Good
- inspected July 2023
- Type
- Culvert
- Concrete
- Length
- 24 ft
- 2 main spans
- Daily traffic
- 60,000
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 1 over Marina Ditch is a concrete culvert carrying State Route 1 over Marina Ditch in Los Angeles County, California. It was built in 1932, so it is 93 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 60,000 vehicles a day, roughly 2% of them trucks, projected to reach 91,026 by 2040. The structure is 24 ft (7.3 m) long and 110 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 State Route 1 over Marina Ditch built?
It was built in 1932, making it 93 years old in 2025.
What condition is State Route 1 over Marina Ditch 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 2023.
How much traffic does State Route 1 over Marina Ditch carry?
About 60,000 vehicles per day (2021 count), of which roughly 2% are trucks.
How long is State Route 1 over Marina Ditch?
The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m) and a deck 110 ft wide.
Who owns State Route 1 over Marina Ditch?
It is owned by the State Highway Agency.