Stoneridge DR-N680 over South San Ramon Creek
FairAlameda County, California · 04-ALA-680-R19.18-PLE · Structure no. 33 0581S
- Built
- 1991
- 34 years old
- Condition
- Fair
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 190 ft
- 3 main spans
- Daily traffic
- 2,200
- 2010 count
- Owner
- State
- State Highway Agency
About this bridge
Stoneridge DR-N680 over South San Ramon Creek is a concrete continuous box beam or girders - multiple carrying Stoneridge DR-N680 over South San Ramon Creek in Alameda County, California. It was built in 1991, so it is 34 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 2,200 vehicles a day, roughly 7% of them trucks, projected to reach 3,154 by 2042. The structure is 190 ft (57.9 m) long and 31 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 | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Stoneridge DR-N680 over South San Ramon Creek built?
It was built in 1991, making it 34 years old in 2025.
What condition is Stoneridge DR-N680 over South San Ramon Creek 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 Stoneridge DR-N680 over South San Ramon Creek carry?
About 2,200 vehicles per day (2010 count), of which roughly 7% are trucks.
How long is Stoneridge DR-N680 over South San Ramon Creek?
The structure is 190 ft (57.9 m) long with a longest span of 67 ft (20.4 m) and a deck 31 ft wide.
Who owns Stoneridge DR-N680 over South San Ramon Creek?
It is owned by the State Highway Agency.