I 405 & Collector over Route 710 & Ramps
FairLos Angeles County, California · 07-LA-405-7.57-LBCH · Structure no. 53 1210
- Built
- 1961
- 64 years old
- Condition
- Fair
- inspected July 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 281 ft
- 2 main spans
- Daily traffic
- 293,231
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I 405 & Collector over Route 710 & Ramps is a prestressed concrete tee beam carrying I 405 & Collector over Route 710 & Ramps in Los Angeles County, California. It was built in 1961, so it is 64 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 293,231 vehicles a day, roughly 5% of them trucks, projected to reach 345,580 by 2046. The structure is 281 ft (85.6 m) long and 179 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 405 & Collector over Route 710 & Ramps built?
It was built in 1961, making it 64 years old in 2025.
What condition is I 405 & Collector over Route 710 & Ramps in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.
How much traffic does I 405 & Collector over Route 710 & Ramps carry?
About 293,231 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is I 405 & Collector over Route 710 & Ramps?
The structure is 281 ft (85.6 m) long with a longest span of 61 ft (18.6 m) and a deck 179 ft wide.
Who owns I 405 & Collector over Route 710 & Ramps?
It is owned by the State Highway Agency.