US Bridges

Kaiser Road over N Fk S Littlejohns Creek

Fair

San Joaquin County, California · 1.5 MI S Mariposa RD · Structure no. 29C0260

Built
1954
71 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
37 ft
2 main spans
Daily traffic
76
2019 count
Owner
County
County Highway Agency

About this bridge

Kaiser Road over N Fk S Littlejohns Creek is a concrete continuous slab carrying Kaiser Road over N Fk S Littlejohns Creek in San Joaquin County, California. It was built in 1954, so it is 71 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 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 76 vehicles a day, roughly 2% of them trucks, projected to reach 205 by 2047. The structure is 37 ft (11.3 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesKaiser Road
CrossesN Fk S Littlejohns Creek
Location1.5 MI S Mariposa RD
RouteCounty Highway 0
Coordinates37.8887, -121.16536
Functional classRural Local

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.5 US tons
Inventory rating44.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span18 ft (5.5 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic76 (2019)
Projected traffic205 by 2047
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Kaiser Road over N Fk S Littlejohns Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is Kaiser Road over N Fk S Littlejohns Creek 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 January 2025.

How much traffic does Kaiser Road over N Fk S Littlejohns Creek carry?

About 76 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is Kaiser Road over N Fk S Littlejohns Creek?

The structure is 37 ft (11.3 m) long with a longest span of 18 ft (5.5 m) and a deck 28 ft wide.

Who owns Kaiser Road over N Fk S Littlejohns Creek?

It is owned by the County Highway Agency.