Greenbrook Drive over Interstate 680
FairContra Costa County, California · 04-CC-680-R5.33-DNVL · Structure no. 28 0223
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected July 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 231 ft
- 3 main spans
- Daily traffic
- 9,500
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Greenbrook Drive over Interstate 680 is a concrete continuous box beam or girders - multiple carrying Greenbrook Drive over Interstate 680 in Contra Costa County, California. It was built in 1966, 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 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 9,500 vehicles a day, roughly 1% of them trucks, projected to reach 21,094 by 2041. The structure is 231 ft (70.3 m) long and 39 ft wide.
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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Greenbrook Drive over Interstate 680 built?
It was built in 1966, making it 59 years old in 2025.
What condition is Greenbrook Drive 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 Greenbrook Drive over Interstate 680 carry?
About 9,500 vehicles per day (2020 count), of which roughly 1% are trucks.
How long is Greenbrook Drive over Interstate 680?
The structure is 231 ft (70.3 m) long with a longest span of 98 ft (29.9 m) and a deck 39 ft wide.
Who owns Greenbrook Drive over Interstate 680?
It is owned by the State Highway Agency.