US Bridges

SB State Route 26 over Hillside

Good

Calaveras County, California · 10-CAL-026-29.33 · Structure no. 30 0048

Built
1984
41 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete Continuous
Length
275 ft
11 main spans
Daily traffic
1,550
2009 count
Owner
State
State Highway Agency

About this bridge

SB State Route 26 over Hillside is a concrete continuous slab carrying SB State Route 26 over Hillside in Calaveras County, California. It was built in 1984, so it is 41 years old, younger 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 1,550 vehicles a day, roughly 5% of them trucks, projected to reach 2,619 by 2041. The structure is 275 ft (83.8 m) long and 11 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesSB State Route 26
CrossesHillside
Location10-CAL-026-29.33
RouteState Highway 26
Coordinates38.36868, -120.55777
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.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20 + Mod
Structure length275 ft (83.8 m)
Longest span25 ft (7.6 m)
Deck width11 ft (3.3 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,550 (2009)
Projected traffic2,619 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed14.9 mi (24 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 SB State Route 26 over Hillside built?

It was built in 1984, making it 41 years old in 2025.

What condition is SB State Route 26 over Hillside 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 May 2023.

How much traffic does SB State Route 26 over Hillside carry?

About 1,550 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is SB State Route 26 over Hillside?

The structure is 275 ft (83.8 m) long with a longest span of 25 ft (7.6 m) and a deck 11 ft wide.

Who owns SB State Route 26 over Hillside?

It is owned by the State Highway Agency.