State Route 4 WB over Cavallo Road
GoodContra Costa County, California · 04-CC-004-R28.23-ANT · Structure no. 28 0402L
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 132 ft
- 1 main span
- Daily traffic
- 47,000
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 4 WB over Cavallo Road is a prestressed concrete box beam or girders - multiple carrying State Route 4 WB over Cavallo Road in Contra Costa County, California. It was built in 2016, so it is 9 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 47,000 vehicles a day, roughly 8% of them trucks, projected to reach 71,412 by 2045. The structure is 132 ft (40.2 m) long and 83 ft wide. If it were closed, the detour would be 2.5 mi (4 km).
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 State Route 4 WB over Cavallo Road built?
It was built in 2016, making it 9 years old in 2025.
What condition is State Route 4 WB over Cavallo Road 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 June 2023.
How much traffic does State Route 4 WB over Cavallo Road carry?
About 47,000 vehicles per day (2017 count), of which roughly 8% are trucks.
How long is State Route 4 WB over Cavallo Road?
The structure is 132 ft (40.2 m) long with a longest span of 128 ft (38.9 m) and a deck 83 ft wide.
Who owns State Route 4 WB over Cavallo Road?
It is owned by the State Highway Agency.