Atherton ST over Los Cerritos Chan
FairLos Angeles County, California · 0.3MI W/O Studebaker RD · Structure no. 53C0211
- Built
- 1956
- 69 years old
- Condition
- Fair
- inspected September 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 131 ft
- 5 main spans
- Daily traffic
- 10,403
- 2014 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Atherton ST over Los Cerritos Chan is a concrete continuous tee beam carrying Atherton ST over Los Cerritos Chan in Los Angeles County, California. It was built in 1956, so it is 69 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 10,403 vehicles a day, roughly 2% of them trucks, projected to reach 11,963 by 2044. The structure is 131 ft (39.9 m) long and 83 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. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Atherton ST over Los Cerritos Chan built?
It was built in 1956, making it 69 years old in 2025.
What condition is Atherton ST over Los Cerritos Chan 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 September 2024.
How much traffic does Atherton ST over Los Cerritos Chan carry?
About 10,403 vehicles per day (2014 count), of which roughly 2% are trucks.
How long is Atherton ST over Los Cerritos Chan?
The structure is 131 ft (39.9 m) long with a longest span of 27 ft (8.3 m) and a deck 83 ft wide.
Who owns Atherton ST over Los Cerritos Chan?
It is owned by the City or Municipal Highway Agency.