San Ramon Road over Interstate 580
FairAlameda County, California · 04-ALA-580-R21.43-PLE · Structure no. 33 0211
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 374 ft
- 2 main spans
- Daily traffic
- 4,950
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
San Ramon Road over Interstate 580 is a prestressed concrete continuous box beam or girders - multiple carrying San Ramon Road over Interstate 580 in Alameda County, California. It was built in 1977, so it is 48 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 4,950 vehicles a day, roughly 1% of them trucks, projected to reach 6,586 by 2044. The structure is 374 ft (113.9 m) long and 117 ft wide. If it were closed, the detour would be 1.9 mi (3 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was San Ramon Road over Interstate 580 built?
It was built in 1977, making it 48 years old in 2025.
What condition is San Ramon Road over Interstate 580 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 March 2024.
How much traffic does San Ramon Road over Interstate 580 carry?
About 4,950 vehicles per day (2009 count), of which roughly 1% are trucks.
How long is San Ramon Road over Interstate 580?
The structure is 374 ft (113.9 m) long with a longest span of 187 ft (57 m) and a deck 117 ft wide.
Who owns San Ramon Road over Interstate 580?
It is owned by the State Highway Agency.