Interstate 405 over UP RR & Alameda Street
GoodLos Angeles County, California · 07-LA-405-8.76-CRSN · Structure no. 53 1168
- Built
- 1962
- 63 years old, rebuilt 1998
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 818 ft
- 8 main spans
- Daily traffic
- 237,800
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 405 over UP RR & Alameda Street is a steel stringer/multi-beam or girder carrying Interstate 405 over UP RR & Alameda Street in Los Angeles County, California. It was built in 1962 and reconstructed in 1998, so it is 63 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 237,800 vehicles a day, roughly 4% of them trucks, projected to reach 318,783 by 2046. The structure is 818 ft (249.3 m) long and 173 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 405 over UP RR & Alameda Street built?
It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1998.
What condition is Interstate 405 over UP RR & Alameda Street 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 September 2024.
How much traffic does Interstate 405 over UP RR & Alameda Street carry?
About 237,800 vehicles per day (2019 count), of which roughly 4% are trucks.
How long is Interstate 405 over UP RR & Alameda Street?
The structure is 818 ft (249.3 m) long with a longest span of 154 ft (46.9 m) and a deck 173 ft wide.
Who owns Interstate 405 over UP RR & Alameda Street?
It is owned by the State Highway Agency.