Alosta Ave over Big Dalton Wash
GoodLos Angeles County, California · 1.1MI E/O Glendora RD · Structure no. 53C0532
- Built
- 1959
- 66 years old, rebuilt 1992
- Condition
- Good
- inspected January 2025
- Type
- Slab
- Concrete
- Length
- 39 ft
- 1 main span
- Daily traffic
- 33,125
- 2015 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Alosta Ave over Big Dalton Wash is a concrete slab carrying Alosta Ave over Big Dalton Wash in Los Angeles County, California. It was built in 1959 and reconstructed in 1992, so it is 66 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 33,125 vehicles a day, roughly 4% of them trucks, projected to reach 39,750 by 2045. The structure is 39 ft (11.8 m) long and 96 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 Alosta Ave over Big Dalton Wash built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1992.
What condition is Alosta Ave over Big Dalton Wash in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2025.
How much traffic does Alosta Ave over Big Dalton Wash carry?
About 33,125 vehicles per day (2015 count), of which roughly 4% are trucks.
How long is Alosta Ave over Big Dalton Wash?
The structure is 39 ft (11.8 m) long with a longest span of 32 ft (9.8 m) and a deck 96 ft wide.
Who owns Alosta Ave over Big Dalton Wash?
It is owned by the City or Municipal Highway Agency.