Imperial HWY over Los Angeles Riv
FairLos Angeles County, California · 400FT E/O I-710 Fwy · Structure no. 53C0042
- Built
- 1951
- 74 years old, rebuilt 1974
- Condition
- Fair
- inspected February 2025
- Type
- Tee Beam
- Concrete Continuous
- Length
- 426 ft
- 5 main spans
- Daily traffic
- 39,417
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Imperial HWY over Los Angeles Riv is a concrete continuous tee beam carrying Imperial HWY over Los Angeles Riv in Los Angeles County, California. It was built in 1951 and reconstructed in 1974, so it is 74 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 6 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 39,417 vehicles a day, roughly 6% of them trucks, projected to reach 47,300 by 2045. The structure is 426 ft (129.8 m) long and 100 ft wide. If it were closed, the detour would be 5 mi (8 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Imperial HWY over Los Angeles Riv built?
It was built in 1951, making it 74 years old in 2025. It was reconstructed in 1974.
What condition is Imperial HWY over Los Angeles Riv 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 February 2025.
How much traffic does Imperial HWY over Los Angeles Riv carry?
About 39,417 vehicles per day (2015 count), of which roughly 6% are trucks.
How long is Imperial HWY over Los Angeles Riv?
The structure is 426 ft (129.8 m) long with a longest span of 96 ft (29.3 m) and a deck 100 ft wide.
Who owns Imperial HWY over Los Angeles Riv?
It is owned by the County Highway Agency.