Carson ST over San Gabriel Riv
FairLos Angeles County, California · 0.5MI W/O I-605 Fwy · Structure no. 53C0422L
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 224 ft
- 3 main spans
- Daily traffic
- 34,632
- 2015 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Carson ST over San Gabriel Riv is a steel stringer/multi-beam or girder carrying Carson ST over San Gabriel Riv in Los Angeles County, California. It was built in 1971, so it is 54 years old, younger 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 34,632 vehicles a day, roughly 3% of them trucks, projected to reach 41,558 by 2045. The structure is 224 ft (68.3 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Carson ST over San Gabriel Riv built?
It was built in 1971, making it 54 years old in 2025.
What condition is Carson ST over San Gabriel 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 January 2025.
How much traffic does Carson ST over San Gabriel Riv carry?
About 34,632 vehicles per day (2015 count), of which roughly 3% are trucks.
How long is Carson ST over San Gabriel Riv?
The structure is 224 ft (68.3 m) long with a longest span of 72 ft (21.9 m) and a deck 35 ft wide.
Who owns Carson ST over San Gabriel Riv?
It is owned by the City or Municipal Highway Agency.