Route 4 WB over Wilson Way
FairSan Joaquin County, California · 10-SJ-004-R17.71-STKN · Structure no. 29 0306L
- Built
- 1992
- 33 years old
- Condition
- Fair
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 160 ft
- 1 main span
- Daily traffic
- 45,500
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Route 4 WB over Wilson Way is a prestressed concrete box beam or girders - multiple carrying Route 4 WB over Wilson Way in San Joaquin County, California. It was built in 1992, so it is 33 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 45,500 vehicles a day, roughly 11% of them trucks, projected to reach 68,846 by 2041. The structure is 160 ft (48.8 m) long and 60 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 | 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 Route 4 WB over Wilson Way built?
It was built in 1992, making it 33 years old in 2025.
What condition is Route 4 WB over Wilson 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 2023.
How much traffic does Route 4 WB over Wilson Way carry?
About 45,500 vehicles per day (2009 count), of which roughly 11% are trucks.
How long is Route 4 WB over Wilson Way?
The structure is 160 ft (48.8 m) long with a longest span of 157 ft (48 m) and a deck 60 ft wide.
Who owns Route 4 WB over Wilson Way?
It is owned by the State Highway Agency.