Interstate 680 over Canal & Bike Path
FairContra Costa County, California · 04-CC-680-16.08 · Structure no. 28 0135
- Built
- 1956
- 69 years old, rebuilt 1996
- Condition
- Fair
- inspected January 2025
- Type
- Tee Beam
- Concrete Continuous
- Length
- 133 ft
- 4 main spans
- Daily traffic
- 257,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 680 over Canal & Bike Path is a concrete continuous tee beam carrying Interstate 680 over Canal & Bike Path in Contra Costa County, California. It was built in 1956 and reconstructed in 1996, so it is 69 years old, older 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 257,000 vehicles a day, roughly 3% of them trucks, projected to reach 419,065 by 2045. The structure is 133 ft (40.5 m) long and 190 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 680 over Canal & Bike Path built?
It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1996.
What condition is Interstate 680 over Canal & Bike Path 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 over Canal & Bike Path carry?
About 257,000 vehicles per day (2009 count), of which roughly 3% are trucks.
How long is Interstate 680 over Canal & Bike Path?
The structure is 133 ft (40.5 m) long with a longest span of 37 ft (11.2 m) and a deck 190 ft wide.
Who owns Interstate 680 over Canal & Bike Path?
It is owned by the State Highway Agency.