Interstate 405 SB over SB 405-STUDEBAKER Offrmp
GoodLos Angeles County, California · 07-LA-405-0.46-LBCH · Structure no. 53 2768R
- Built
- 1993
- 32 years old
- Condition
- Good
- inspected December 2024
- Type
- Slab
- Concrete
- Length
- 261 ft
- 1 main span
- Daily traffic
- 127,500
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 405 SB over SB 405-STUDEBAKER Offrmp is a concrete slab carrying Interstate 405 SB over SB 405-STUDEBAKER Offrmp in Los Angeles County, California. It was built in 1993, so it is 32 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 127,500 vehicles a day, roughly 5% of them trucks, projected to reach 159,119 by 2041. The structure is 261 ft (79.7 m) long and 16 ft wide. If it were closed, the detour would be 0.6 mi (1 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 |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 405 SB over SB 405-STUDEBAKER Offrmp built?
It was built in 1993, making it 32 years old in 2025.
What condition is Interstate 405 SB over SB 405-STUDEBAKER Offrmp 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 December 2024.
How much traffic does Interstate 405 SB over SB 405-STUDEBAKER Offrmp carry?
About 127,500 vehicles per day (2021 count), of which roughly 5% are trucks.
How long is Interstate 405 SB over SB 405-STUDEBAKER Offrmp?
The structure is 261 ft (79.7 m) long with a longest span of 15 ft (4.6 m) and a deck 16 ft wide.
Who owns Interstate 405 SB over SB 405-STUDEBAKER Offrmp?
It is owned by the State Highway Agency.