State Route 4 over Crosstown Fwy Viaduct
FairSan Joaquin County, California · 10-SJ-004-R16.62-STKN · Structure no. 29 0269
- Built
- 1975
- 50 years old, rebuilt 1988
- Condition
- Fair
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 4,367 ft
- 36 main spans
- Daily traffic
- 74,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 4 over Crosstown Fwy Viaduct is a prestressed concrete continuous box beam or girders - multiple carrying State Route 4 over Crosstown Fwy Viaduct in San Joaquin County, California. It was built in 1975 and reconstructed in 1988, so it is 50 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 5 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 74,000 vehicles a day, roughly 10% of them trucks, projected to reach 114,198 by 2041. The structure is 4,367 ft (1,331.1 m) long and 109 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 4 over Crosstown Fwy Viaduct built?
It was built in 1975, making it 50 years old in 2025. It was reconstructed in 1988.
What condition is State Route 4 over Crosstown Fwy Viaduct 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 2023.
How much traffic does State Route 4 over Crosstown Fwy Viaduct carry?
About 74,000 vehicles per day (2009 count), of which roughly 10% are trucks.
How long is State Route 4 over Crosstown Fwy Viaduct?
The structure is 4,367 ft (1,331.1 m) long with a longest span of 130 ft (39.6 m) and a deck 109 ft wide.
Who owns State Route 4 over Crosstown Fwy Viaduct?
It is owned by the State Highway Agency.