Interstate 680 over San Ramon Creek
FairContra Costa County, California · 04-CC-680-R7.43-DNVL · Structure no. 28 0197
- Built
- 1964
- 61 years old, rebuilt 1994
- Condition
- Fair
- inspected July 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 209 ft
- 3 main spans
- Daily traffic
- 192,200
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 680 over San Ramon Creek is a concrete continuous tee beam carrying Interstate 680 over San Ramon Creek in Contra Costa County, California. It was built in 1964 and reconstructed in 1994, so it is 61 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 192,200 vehicles a day, roughly 6% of them trucks, projected to reach 255,042 by 2044. The structure is 209 ft (63.6 m) long and 138 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 San Ramon Creek built?
It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1994.
What condition is Interstate 680 over 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 July 2024.
How much traffic does Interstate 680 over San Ramon Creek carry?
About 192,200 vehicles per day (2017 count), of which roughly 6% are trucks.
How long is Interstate 680 over San Ramon Creek?
The structure is 209 ft (63.6 m) long with a longest span of 81 ft (24.7 m) and a deck 138 ft wide.
Who owns Interstate 680 over San Ramon Creek?
It is owned by the State Highway Agency.