State Route 12 over South Branch Main Canal
FairSan Joaquin County, California · 10-SJ-012-16.29-LOD · Structure no. 29 0035
- Built
- 1944
- 81 years old, rebuilt 1981
- Condition
- Fair
- inspected July 2024
- Type
- Slab
- Concrete Continuous
- Length
- 45 ft
- 3 main spans
- Daily traffic
- 21,900
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 12 over South Branch Main Canal is a concrete continuous slab carrying State Route 12 over South Branch Main Canal in San Joaquin County, California. It was built in 1944 and reconstructed in 1981, so it is 81 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 21,900 vehicles a day, roughly 10% of them trucks, projected to reach 61,817 by 2042. The structure is 45 ft (13.7 m) long and 104 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 12 over South Branch Main Canal built?
It was built in 1944, making it 81 years old in 2025. It was reconstructed in 1981.
What condition is State Route 12 over South Branch Main Canal 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 July 2024.
How much traffic does State Route 12 over South Branch Main Canal carry?
About 21,900 vehicles per day (2014 count), of which roughly 10% are trucks.
How long is State Route 12 over South Branch Main Canal?
The structure is 45 ft (13.7 m) long with a longest span of 30 ft (9.1 m) and a deck 104 ft wide.
Who owns State Route 12 over South Branch Main Canal?
It is owned by the State Highway Agency.