US Bridges

Lake Road over Le Grand Canal

Fair

Merced County, California · 0.4 MI NE Old Lake Road · Structure no. 39C0181

Built
1930
95 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
58 ft
2 main spans
Daily traffic
101
2018 count
Owner
County
County Highway Agency

About this bridge

Lake Road over Le Grand Canal is a concrete continuous slab carrying Lake Road over Le Grand Canal in Merced County, California. It was built in 1930, so it is 95 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 101 vehicles a day, roughly 23% of them trucks, projected to reach 112 by 2047. The structure is 58 ft (17.7 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesLake Road
CrossesLe Grand Canal
Location0.4 MI NE Old Lake Road
RouteCounty Highway 0
CountyMerced County
StateCalifornia
Coordinates37.37229, -120.42667
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.9 US tons
Inventory rating17.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length58 ft (17.7 m)
Longest span29 ft (8.8 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic101 (2018)
Projected traffic112 by 2047
Trucks23%
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

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 Lake Road over Le Grand Canal built?

It was built in 1930, making it 95 years old in 2025.

What condition is Lake Road over Le Grand 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 January 2025.

How much traffic does Lake Road over Le Grand Canal carry?

About 101 vehicles per day (2018 count), of which roughly 23% are trucks.

How long is Lake Road over Le Grand Canal?

The structure is 58 ft (17.7 m) long with a longest span of 29 ft (8.8 m) and a deck 26 ft wide.

Who owns Lake Road over Le Grand Canal?

It is owned by the County Highway Agency.