Interstate 680 NB over Ygnacio Valley Road
FairContra Costa County, California · 04-CC-680-14.85-WLC · Structure no. 28 0117R
- Built
- 1995
- 30 years old
- Condition
- Fair
- inspected January 2025
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 149 ft
- 1 main span
- Daily traffic
- 117,500
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 680 NB over Ygnacio Valley Road is a prestressed concrete box beam or girders - multiple carrying Interstate 680 NB over Ygnacio Valley Road in Contra Costa County, California. It was built in 1995, so it is 30 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 6 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 117,500 vehicles a day, roughly 3% of them trucks, projected to reach 201,330 by 2043. The structure is 149 ft (45.4 m) long and 95 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 680 NB over Ygnacio Valley Road built?
It was built in 1995, making it 30 years old in 2025.
What condition is Interstate 680 NB over Ygnacio Valley Road 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 Interstate 680 NB over Ygnacio Valley Road carry?
About 117,500 vehicles per day (2009 count), of which roughly 3% are trucks.
How long is Interstate 680 NB over Ygnacio Valley Road?
The structure is 149 ft (45.4 m) long with a longest span of 149 ft (45.4 m) and a deck 95 ft wide.
Who owns Interstate 680 NB over Ygnacio Valley Road?
It is owned by the State Highway Agency.