US Bridges

Route 12 over Farmer Access

Fair

San Joaquin County, California · 10-SJ-012-2.61 · Structure no. 29 0336

Built
2016
9 years old
Condition
Fair
inspected April 2024
Type
Slab
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
18,200
2016 count
Owner
State
State Highway Agency

About this bridge

Route 12 over Farmer Access is a prestressed concrete slab carrying Route 12 over Farmer Access in San Joaquin County, California. It was built in 2016, so it is 9 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 18,200 vehicles a day, roughly 14% of them trucks, projected to reach 31,326 by 2046. The structure is 62 ft (18.9 m) long and 55 ft wide. If it were closed, the detour would be 42.9 mi (69 km).

CarriesRoute 12
CrossesFarmer Access
Location10-SJ-012-2.61
RouteState Highway 12
Coordinates38.11319, -121.53511
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length62 ft (18.9 m)
Longest span59 ft (18 m)
Deck width55 ft (16.8 m)
Roadway width50 ft (15.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,200 (2016)
Projected traffic31,326 by 2046
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed42.9 mi (69 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Route 12 over Farmer Access built?

It was built in 2016, making it 9 years old in 2025.

What condition is Route 12 over Farmer Access 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 April 2024.

How much traffic does Route 12 over Farmer Access carry?

About 18,200 vehicles per day (2016 count), of which roughly 14% are trucks.

How long is Route 12 over Farmer Access?

The structure is 62 ft (18.9 m) long with a longest span of 59 ft (18 m) and a deck 55 ft wide.

Who owns Route 12 over Farmer Access?

It is owned by the State Highway Agency.