Oak Park Blvd over I 680 N Main Street
FairContra Costa County, California · 04-CC-680-16.88-PLHL · Structure no. 28 0115
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected January 2025
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 328 ft
- 3 main spans
- Daily traffic
- 16,900
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
Oak Park Blvd over I 680 N Main Street is a prestressed concrete continuous box beam or girders - multiple carrying Oak Park Blvd over I 680 N Main Street in Contra Costa County, California. It was built in 1982, so it is 43 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 16,900 vehicles a day, roughly 3% of them trucks, projected to reach 33,372 by 2047. The structure is 328 ft (100 m) long and 113 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Oak Park Blvd over I 680 N Main Street built?
It was built in 1982, making it 43 years old in 2025.
What condition is Oak Park Blvd over I 680 N Main Street 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 Oak Park Blvd over I 680 N Main Street carry?
About 16,900 vehicles per day (2016 count), of which roughly 3% are trucks.
How long is Oak Park Blvd over I 680 N Main Street?
The structure is 328 ft (100 m) long with a longest span of 127 ft (38.6 m) and a deck 113 ft wide.
Who owns Oak Park Blvd over I 680 N Main Street?
It is owned by the State Highway Agency.