US Bridges

Oakdale-Watrfd HWY over M.I.D. Main Canal

Fair

Stanislaus County, California · 0.9 MI NW SR 132 · Structure no. 38C0076

Built
1920
105 years old, rebuilt 1961
Condition
Fair
inspected February 2025
Type
Slab
Concrete Continuous
Length
67 ft
4 main spans
Daily traffic
6,302
2017 count
Owner
County
County Highway Agency

About this bridge

Oakdale-Watrfd HWY over M.I.D. Main Canal is a concrete continuous slab carrying Oakdale-Watrfd HWY over M.I.D. Main Canal in Stanislaus County, California. It was built in 1920 and reconstructed in 1961, so it is 105 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 6,302 vehicles a day, roughly 18% of them trucks, projected to reach 7,787 by 2047. The structure is 67 ft (20.4 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesOakdale-Watrfd HWY
CrossesM.I.D. Main Canal
Location0.9 MI NW SR 132
RouteCounty Highway 0
CountyStanislaus County
StateCalifornia
Coordinates37.64855, -120.76934
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.6 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length67 ft (20.4 m)
Longest span16 ft (5 m)
Deck width37 ft (11.3 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,302 (2017)
Projected traffic7,787 by 2047
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Oakdale-Watrfd HWY over M.I.D. Main Canal built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1961.

What condition is Oakdale-Watrfd HWY over M.I.D. Main Canal 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 February 2025.

How much traffic does Oakdale-Watrfd HWY over M.I.D. Main Canal carry?

About 6,302 vehicles per day (2017 count), of which roughly 18% are trucks.

How long is Oakdale-Watrfd HWY over M.I.D. Main Canal?

The structure is 67 ft (20.4 m) long with a longest span of 16 ft (5 m) and a deck 37 ft wide.

Who owns Oakdale-Watrfd HWY over M.I.D. Main Canal?

It is owned by the County Highway Agency.