US Bridges

Hansen Road over California Aqueduct

Fair

San Joaquin County, California · 0.8 MI S of W Schulte RD · Structure no. 29C0475

Built
1965
60 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete Continuous
Length
147 ft
2 main spans
Daily traffic
1,932
2019 count
Owner
State
Other State Agency

About this bridge

Hansen Road over California Aqueduct is a concrete continuous tee beam carrying Hansen Road over California Aqueduct in San Joaquin County, California. It was built in 1965, so it is 60 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 6 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 1,932 vehicles a day, roughly 90% of them trucks, projected to reach 3,061 by 2044. The structure is 147 ft (44.8 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesHansen Road
CrossesCalifornia Aqueduct
Location0.8 MI S of W Schulte RD
RouteCounty Highway 0
Coordinates37.70999, -121.51296
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length147 ft (44.8 m)
Longest span72 ft (22 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,932 (2019)
Projected traffic3,061 by 2044
Trucks90%
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

OwnerOther State Agency
Maintained byOther State 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 Hansen Road over California Aqueduct built?

It was built in 1965, making it 60 years old in 2025.

What condition is Hansen Road over California Aqueduct 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 June 2024.

How much traffic does Hansen Road over California Aqueduct carry?

About 1,932 vehicles per day (2019 count), of which roughly 90% are trucks.

How long is Hansen Road over California Aqueduct?

The structure is 147 ft (44.8 m) long with a longest span of 72 ft (22 m) and a deck 26 ft wide.

Who owns Hansen Road over California Aqueduct?

It is owned by the Other State Agency.