Main ST over Arroyo Del Valle
GoodAlameda County, California · South Del Valle Pkwy · Structure no. 33C0058
- Built
- 1959
- 66 years old
- Condition
- Good
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 171 ft
- 3 main spans
- Daily traffic
- 16,300
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Main ST over Arroyo Del Valle is a steel stringer/multi-beam or girder carrying Main ST over Arroyo Del Valle in Alameda County, California. It was built in 1959, 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 16,300 vehicles a day, roughly 2% of them trucks, projected to reach 22,173 by 2041. The structure is 171 ft (52.1 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Main ST over Arroyo Del Valle built?
It was built in 1959, making it 66 years old in 2025.
What condition is Main ST over Arroyo Del Valle 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 October 2023.
How much traffic does Main ST over Arroyo Del Valle carry?
About 16,300 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is Main ST over Arroyo Del Valle?
The structure is 171 ft (52.1 m) long with a longest span of 55 ft (16.8 m) and a deck 71 ft wide.
Who owns Main ST over Arroyo Del Valle?
It is owned by the City or Municipal Highway Agency.