Interstate 405 over Westwood Flood Ctrl Ch
GoodLos Angeles County, California · 07-LA-405-28.61-LA · Structure no. 53 1267
- Built
- 1959
- 66 years old, rebuilt 2008
- Condition
- Good
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 80 ft
- 1 main span
- Daily traffic
- 296,000
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 405 over Westwood Flood Ctrl Ch is a steel stringer/multi-beam or girder carrying Interstate 405 over Westwood Flood Ctrl Ch in Los Angeles County, California. It was built in 1959 and reconstructed in 2008, so it is 66 years old, older 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 296,000 vehicles a day, roughly 4% of them trucks, projected to reach 420,473 by 2043. The structure is 80 ft (24.4 m) long and 194 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 405 over Westwood Flood Ctrl Ch built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2008.
What condition is Interstate 405 over Westwood Flood Ctrl Ch 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 April 2023.
How much traffic does Interstate 405 over Westwood Flood Ctrl Ch carry?
About 296,000 vehicles per day (2014 count), of which roughly 4% are trucks.
How long is Interstate 405 over Westwood Flood Ctrl Ch?
The structure is 80 ft (24.4 m) long with a longest span of 75 ft (22.9 m) and a deck 194 ft wide.
Who owns Interstate 405 over Westwood Flood Ctrl Ch?
It is owned by the State Highway Agency.