LA CIENEGA-S405 on over Imperial HWY
GoodLos Angeles County, California · 07-LA-405-R21.22-LA · Structure no. 53 2829K
- Built
- 1994
- 31 years old
- Condition
- Good
- inspected November 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 138 ft
- 1 main span
- Daily traffic
- 2,711
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
LA CIENEGA-S405 on over Imperial HWY is a prestressed concrete box beam or girders - multiple carrying LA CIENEGA-S405 on over Imperial HWY in Los Angeles County, California. It was built in 1994, so it is 31 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 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 2,711 vehicles a day, roughly 1% of them trucks, projected to reach 3,643 by 2042. The structure is 138 ft (42.1 m) long and 35 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 LA CIENEGA-S405 on over Imperial HWY built?
It was built in 1994, making it 31 years old in 2025.
What condition is LA CIENEGA-S405 on over Imperial HWY 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 November 2024.
How much traffic does LA CIENEGA-S405 on over Imperial HWY carry?
About 2,711 vehicles per day (2015 count), of which roughly 1% are trucks.
How long is LA CIENEGA-S405 on over Imperial HWY?
The structure is 138 ft (42.1 m) long with a longest span of 138 ft (42.1 m) and a deck 35 ft wide.
Who owns LA CIENEGA-S405 on over Imperial HWY?
It is owned by the State Highway Agency.