Intrestate 405 over Marine Avenue
FairLos Angeles County, California · 07-LA-405-18.63-RDOB · Structure no. 53 1234
- Built
- 1963
- 62 years old
- Condition
- Fair
- inspected October 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 199 ft
- 4 main spans
- Daily traffic
- 260,800
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Intrestate 405 over Marine Avenue is a concrete continuous box beam or girders - multiple carrying Intrestate 405 over Marine Avenue in Los Angeles County, California. It was built in 1963, so it is 62 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 260,800 vehicles a day, roughly 5% of them trucks, projected to reach 309,310 by 2041. The structure is 199 ft (60.7 m) long and 141 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Intrestate 405 over Marine Avenue built?
It was built in 1963, making it 62 years old in 2025.
What condition is Intrestate 405 over Marine Avenue in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.
How much traffic does Intrestate 405 over Marine Avenue carry?
About 260,800 vehicles per day (2019 count), of which roughly 5% are trucks.
How long is Intrestate 405 over Marine Avenue?
The structure is 199 ft (60.7 m) long with a longest span of 63 ft (19.2 m) and a deck 141 ft wide.
Who owns Intrestate 405 over Marine Avenue?
It is owned by the State Highway Agency.