US Bridges

State Route 26 over Duck Creek

Fair

San Joaquin County, California · 10-SJ-026-16.87 · Structure no. 29 0042

Built
1984
41 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
86 ft
3 main spans
Daily traffic
5,200
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 26 over Duck Creek is a concrete continuous slab carrying State Route 26 over Duck Creek in San Joaquin 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 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 5,200 vehicles a day, roughly 7% of them trucks, projected to reach 10,268 by 2041. The structure is 86 ft (26.2 m) long and 44 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesState Route 26
CrossesDuck Creek
Location10-SJ-026-16.87
RouteState Highway 26
CountySan Joaquin County
StateCalifornia
Coordinates38.06811, -120.99584
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length86 ft (26.2 m)
Longest span28 ft (8.5 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,200 (2009)
Projected traffic10,268 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Duck Creek built?

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

What condition is State Route 26 over Duck 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 March 2023.

How much traffic does State Route 26 over Duck Creek carry?

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

How long is State Route 26 over Duck Creek?

The structure is 86 ft (26.2 m) long with a longest span of 28 ft (8.5 m) and a deck 44 ft wide.

Who owns State Route 26 over Duck Creek?

It is owned by the State Highway Agency.