US Bridges

State Route 26 over Calaveras River

Good

San Joaquin County, California · 10-SJ-026-15.30 · Structure no. 29 0041

Built
1952
73 years old
Condition
Good
inspected March 2021
Type
Slab
Concrete Continuous
Length
94 ft
3 main spans
Daily traffic
5,200
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 26 over Calaveras River is a concrete continuous slab carrying State Route 26 over Calaveras River in San Joaquin County, California. It was built in 1952, so it is 73 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,200 vehicles a day, roughly 7% of them trucks, projected to reach 10,615 by 2043. The structure is 94 ft (28.7 m) long and 29 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesState Route 26
CrossesCalaveras River
Location10-SJ-026-15.30
RouteState Highway 26
Coordinates38.0532, -121.01401
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.8 US tons
Inventory rating46.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length94 ft (28.7 m)
Longest span36 ft (11 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,200 (2009)
Projected traffic10,615 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 26 over Calaveras River built?

It was built in 1952, making it 73 years old in 2025.

What condition is State Route 26 over Calaveras River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2021.

How much traffic does State Route 26 over Calaveras River carry?

About 5,200 vehicles per day (2009 count), of which roughly 7% are trucks.

How long is State Route 26 over Calaveras River?

The structure is 94 ft (28.7 m) long with a longest span of 36 ft (11 m) and a deck 29 ft wide.

Who owns State Route 26 over Calaveras River?

It is owned by the State Highway Agency.