US Bridges

N Wishon Ave over Herndon Canal

Fair

Fresno County, California · South of Lansing Way · Structure no. 42C0333

Built
1988
37 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete Continuous
Length
57 ft
2 main spans
Daily traffic
800
2011 count
Owner
City
City or Municipal Highway Agency

About this bridge

N Wishon Ave over Herndon Canal is a concrete continuous slab carrying N Wishon Ave over Herndon Canal in Fresno County, California. It was built in 1988, so it is 37 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 800 vehicles a day, roughly 1% of them trucks, projected to reach 1,033 by 2042. The structure is 57 ft (17.5 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesN Wishon Ave
CrossesHerndon Canal
LocationSouth of Lansing Way
RouteCity Street 0
CountyFresno County
StateCalifornia
Coordinates36.78665, -119.80229
Functional classUrban 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
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 inspectionDecember 2024
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 geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.7 US tons
Inventory rating45.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length57 ft (17.5 m)
Longest span28 ft (8.5 m)
Deck width54 ft (16.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2011)
Projected traffic1,033 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 N Wishon Ave over Herndon Canal built?

It was built in 1988, making it 37 years old in 2025.

What condition is N Wishon Ave over Herndon 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 December 2024.

How much traffic does N Wishon Ave over Herndon Canal carry?

About 800 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is N Wishon Ave over Herndon Canal?

The structure is 57 ft (17.5 m) long with a longest span of 28 ft (8.5 m) and a deck 54 ft wide.

Who owns N Wishon Ave over Herndon Canal?

It is owned by the City or Municipal Highway Agency.