Bollinger Cyn RD over Interstate 680
FairContra Costa County, California · 04-CC-680-R2.88-SRMN · Structure no. 28 0224
- Built
- 1966
- 59 years old, rebuilt 1986
- Condition
- Fair
- inspected July 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 244 ft
- 4 main spans
- Daily traffic
- 10,800
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Bollinger Cyn RD over Interstate 680 is a concrete continuous box beam or girders - multiple carrying Bollinger Cyn RD over Interstate 680 in Contra Costa County, California. It was built in 1966 and reconstructed in 1986, so it is 59 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 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 10,800 vehicles a day, roughly 3% of them trucks, projected to reach 25,822 by 2041. The structure is 244 ft (74.4 m) long and 108 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Bollinger Cyn RD over Interstate 680 built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1986.
What condition is Bollinger Cyn RD 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 July 2024.
How much traffic does Bollinger Cyn RD over Interstate 680 carry?
About 10,800 vehicles per day (2020 count), of which roughly 3% are trucks.
How long is Bollinger Cyn RD over Interstate 680?
The structure is 244 ft (74.4 m) long with a longest span of 90 ft (27.4 m) and a deck 108 ft wide.
Who owns Bollinger Cyn RD over Interstate 680?
It is owned by the State Highway Agency.