State Route 4 WB over Alhambra Ave
FairContra Costa County, California · 04-CC-004-R8.55-MTZ · Structure no. 28 0214L
- Built
- 1967
- 58 years old, rebuilt 1975
- Condition
- Fair
- inspected May 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 172 ft
- 3 main spans
- Daily traffic
- 31,000
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 4 WB over Alhambra Ave is a concrete continuous box beam or girders - multiple carrying State Route 4 WB over Alhambra Ave in Contra Costa County, California. It was built in 1967 and reconstructed in 1975, so it is 58 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 31,000 vehicles a day, roughly 7% of them trucks, projected to reach 63,819 by 2042. The structure is 172 ft (52.4 m) long and 52 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 | 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 Alhambra Ave built?
It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1975.
What condition is State Route 4 WB over Alhambra Ave 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 May 2024.
How much traffic does State Route 4 WB over Alhambra Ave carry?
About 31,000 vehicles per day (2018 count), of which roughly 7% are trucks.
How long is State Route 4 WB over Alhambra Ave?
The structure is 172 ft (52.4 m) long with a longest span of 104 ft (31.7 m) and a deck 52 ft wide.
Who owns State Route 4 WB over Alhambra Ave?
It is owned by the State Highway Agency.