Interstate 605 over Imperial Highway
FairLos Angeles County, California · 07-LA-605-R7.85-NRW · Structure no. 53 1651
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected August 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 164 ft
- 4 main spans
- Daily traffic
- 297,000
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 605 over Imperial Highway is a concrete continuous box beam or girders - multiple carrying Interstate 605 over Imperial Highway in Los Angeles County, California. It was built in 1966, so it is 59 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 297,000 vehicles a day, roughly 6% of them trucks, projected to reach 305,454 by 2042. The structure is 164 ft (50 m) long and 171 ft wide. If it were closed, the detour would be 1.9 mi (3 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 Interstate 605 over Imperial Highway built?
It was built in 1966, making it 59 years old in 2025.
What condition is Interstate 605 over Imperial Highway 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 August 2023.
How much traffic does Interstate 605 over Imperial Highway carry?
About 297,000 vehicles per day (2021 count), of which roughly 6% are trucks.
How long is Interstate 605 over Imperial Highway?
The structure is 164 ft (50 m) long with a longest span of 53 ft (16.2 m) and a deck 171 ft wide.
Who owns Interstate 605 over Imperial Highway?
It is owned by the State Highway Agency.