Interstate 405 over Sepulveda Blvd
FairLos Angeles County, California · 07-LA-405-25.46-CLC · Structure no. 53 1254
- Built
- 1963
- 62 years old, rebuilt 2014
- Condition
- Fair
- inspected February 2025
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 248 ft
- 4 main spans
- Daily traffic
- 284,000
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 405 over Sepulveda Blvd is a concrete continuous box beam or girders - multiple carrying Interstate 405 over Sepulveda Blvd in Los Angeles County, California. It was built in 1963 and reconstructed in 2014, 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 5 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 284,000 vehicles a day, roughly 4% of them trucks, projected to reach 349,130 by 2045. The structure is 248 ft (75.5 m) long and 164 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Interstate 405 over Sepulveda Blvd built?
It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2014.
What condition is Interstate 405 over Sepulveda Blvd 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 February 2025.
How much traffic does Interstate 405 over Sepulveda Blvd carry?
About 284,000 vehicles per day (2019 count), of which roughly 4% are trucks.
How long is Interstate 405 over Sepulveda Blvd?
The structure is 248 ft (75.5 m) long with a longest span of 71 ft (21.6 m) and a deck 164 ft wide.
Who owns Interstate 405 over Sepulveda Blvd?
It is owned by the State Highway Agency.