State Route 4 WB over Solano Way
FairContra Costa County, California · 04-CC-004-R13.65 · Structure no. 28 0241L
- Built
- 1981
- 44 years old, rebuilt 2021
- Condition
- Fair
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 283 ft
- 4 main spans
- Daily traffic
- 42,800
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 4 WB over Solano Way is a prestressed concrete continuous box beam or girders - multiple carrying State Route 4 WB over Solano Way in Contra Costa County, California. It was built in 1981 and reconstructed in 2021, so it is 44 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 42,800 vehicles a day, roughly 7% of them trucks, projected to reach 55,650 by 2042. The structure is 283 ft (86.3 m) long and 75 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 | 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 Solano Way built?
It was built in 1981, making it 44 years old in 2025. It was reconstructed in 2021.
What condition is State Route 4 WB over Solano Way 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 June 2024.
How much traffic does State Route 4 WB over Solano Way carry?
About 42,800 vehicles per day (2019 count), of which roughly 7% are trucks.
How long is State Route 4 WB over Solano Way?
The structure is 283 ft (86.3 m) long with a longest span of 85 ft (25.9 m) and a deck 75 ft wide.
Who owns State Route 4 WB over Solano Way?
It is owned by the State Highway Agency.