N680-CC Blvd Ramp over Interstate 680
FairContra Costa County, California · 04-CC-680-R17.40-PLHL · Structure no. 28 0325S
- Built
- 1998
- 27 years old
- Condition
- Fair
- inspected January 2025
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 288 ft
- 2 main spans
- Daily traffic
- 12,100
- 2012 count
- Owner
- State
- State Highway Agency
About this bridge
N680-CC Blvd Ramp over Interstate 680 is a prestressed concrete continuous box beam or girders - multiple carrying N680-CC Blvd Ramp over Interstate 680 in Contra Costa County, California. It was built in 1998, so it is 27 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 12,100 vehicles a day, roughly 3% of them trucks, projected to reach 17,798 by 2047. The structure is 288 ft (87.9 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N680-CC Blvd Ramp over Interstate 680 built?
It was built in 1998, making it 27 years old in 2025.
What condition is N680-CC Blvd Ramp over Interstate 680 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 January 2025.
How much traffic does N680-CC Blvd Ramp over Interstate 680 carry?
About 12,100 vehicles per day (2012 count), of which roughly 3% are trucks.
How long is N680-CC Blvd Ramp over Interstate 680?
The structure is 288 ft (87.9 m) long with a longest span of 180 ft (55 m) and a deck 40 ft wide.
Who owns N680-CC Blvd Ramp over Interstate 680?
It is owned by the State Highway Agency.