US Bridges

Walnut Avenue over Livingston Canal

Fair

Merced County, California · 0.57 MI E Central Ave · Structure no. 39C0078

Built
1978
47 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete Continuous
Length
67 ft
2 main spans
Daily traffic
3,931
2018 count
Owner
County
County Highway Agency

About this bridge

Walnut Avenue over Livingston Canal is a concrete continuous slab carrying Walnut Avenue over Livingston Canal in Merced County, California. It was built in 1978, so it is 47 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 3,931 vehicles a day, roughly 4% of them trucks, projected to reach 5,471 by 2042. The structure is 67 ft (20.4 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesWalnut Avenue
CrossesLivingston Canal
Location0.57 MI E Central Ave
RouteCounty Highway 0
CountyMerced County
StateCalifornia
Coordinates37.38931, -120.6396
Functional classUrban 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
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 protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.5 US tons
Inventory rating57.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length67 ft (20.4 m)
Longest span32 ft (9.8 m)
Deck width32 ft (9.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,931 (2018)
Projected traffic5,471 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Walnut Avenue over Livingston Canal built?

It was built in 1978, making it 47 years old in 2025.

What condition is Walnut Avenue over Livingston 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 2024.

How much traffic does Walnut Avenue over Livingston Canal carry?

About 3,931 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is Walnut Avenue over Livingston Canal?

The structure is 67 ft (20.4 m) long with a longest span of 32 ft (9.8 m) and a deck 32 ft wide.

Who owns Walnut Avenue over Livingston Canal?

It is owned by the County Highway Agency.