Claeys Lane over State Route 4
GoodContra Costa County, California · 04-CC-004-R1.70 · Structure no. 28 0359
- Built
- 2001
- 24 years old
- Condition
- Good
- inspected May 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 192 ft
- 2 main spans
- Daily traffic
- 35,000
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
Claeys Lane over State Route 4 is a prestressed concrete continuous box beam or girders - multiple carrying Claeys Lane over State Route 4 in Contra Costa County, California. It was built in 2001, so it is 24 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 35,000 vehicles a day, roughly 7% of them trucks, projected to reach 43,822 by 2042. The structure is 192 ft (58.5 m) long and 35 ft wide.
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Claeys Lane over State Route 4 built?
It was built in 2001, making it 24 years old in 2025.
What condition is Claeys Lane over State Route 4 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.
How much traffic does Claeys Lane over State Route 4 carry?
About 35,000 vehicles per day (2018 count), of which roughly 7% are trucks.
How long is Claeys Lane over State Route 4?
The structure is 192 ft (58.5 m) long with a longest span of 102 ft (31 m) and a deck 35 ft wide.
Who owns Claeys Lane over State Route 4?
It is owned by the State Highway Agency.