S405-IMPERIAL HWY over Lennox Blvd
GoodLos Angeles County, California · 07-LA-405-21.74-LA · Structure no. 53 1242K
- Built
- 1989
- 36 years old
- Condition
- Good
- inspected November 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 146 ft
- 1 main span
- Daily traffic
- 40,000
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
S405-IMPERIAL HWY over Lennox Blvd is a prestressed concrete continuous box beam or girders - multiple carrying S405-IMPERIAL HWY over Lennox Blvd in Los Angeles County, California. It was built in 1989, so it is 36 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 40,000 vehicles a day, roughly 3% of them trucks, projected to reach 48,072 by 2041. The structure is 146 ft (44.5 m) long and 53 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 S405-IMPERIAL HWY over Lennox Blvd built?
It was built in 1989, making it 36 years old in 2025.
What condition is S405-IMPERIAL HWY over Lennox Blvd 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 S405-IMPERIAL HWY over Lennox Blvd carry?
About 40,000 vehicles per day (2019 count), of which roughly 3% are trucks.
How long is S405-IMPERIAL HWY over Lennox Blvd?
The structure is 146 ft (44.5 m) long with a longest span of 83 ft (25.3 m) and a deck 53 ft wide.
Who owns S405-IMPERIAL HWY over Lennox Blvd?
It is owned by the State Highway Agency.