Interstate 580 over Castro Valley Blvd
FairAlameda County, California · 04-ALA-580-R30.56 · Structure no. 33 0202R
- Built
- 1989
- 36 years old
- Condition
- Fair
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 240 ft
- 2 main spans
- Daily traffic
- 102,000
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 580 over Castro Valley Blvd is a prestressed concrete continuous box beam or girders - multiple carrying Interstate 580 over Castro Valley Blvd in Alameda County, California. It was built in 1989, so it is 36 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 102,000 vehicles a day, roughly 6% of them trucks, projected to reach 110,289 by 2042. The structure is 240 ft (73.2 m) long and 81 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 580 over Castro Valley Blvd built?
It was built in 1989, making it 36 years old in 2025.
What condition is Interstate 580 over Castro Valley Blvd 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 April 2024.
How much traffic does Interstate 580 over Castro Valley Blvd carry?
About 102,000 vehicles per day (2017 count), of which roughly 6% are trucks.
How long is Interstate 580 over Castro Valley Blvd?
The structure is 240 ft (73.2 m) long with a longest span of 119 ft (36.3 m) and a deck 81 ft wide.
Who owns Interstate 580 over Castro Valley Blvd?
It is owned by the State Highway Agency.