Main Street over SR 4
FairSan Joaquin County, California · 10-SJ-004-R18.06-STKN · Structure no. 29 0303
- Built
- 1992
- 33 years old
- Condition
- Fair
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 285 ft
- 2 main spans
- Daily traffic
- 12,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Main Street over SR 4 is a prestressed concrete continuous box beam or girders - multiple carrying Main Street over SR 4 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 12,000 vehicles a day, roughly 3% of them trucks, projected to reach 16,138 by 2041. The structure is 285 ft (86.9 m) long and 82 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 Main Street over SR 4 built?
It was built in 1992, making it 33 years old in 2025.
What condition is Main Street over SR 4 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 Main Street over SR 4 carry?
About 12,000 vehicles per day (2009 count), of which roughly 3% are trucks.
How long is Main Street over SR 4?
The structure is 285 ft (86.9 m) long with a longest span of 147 ft (44.9 m) and a deck 82 ft wide.
Who owns Main Street over SR 4?
It is owned by the State Highway Agency.