US Bridges

N Biola Ave over Herndon Canal

Fair

Fresno County, California · At Barstow Ave · Structure no. 42C0381

Built
1935
90 years old, rebuilt 1960
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Concrete
Length
27 ft
1 main span
Daily traffic
550
2010 count
Owner
County
County Highway Agency

About this bridge

N Biola Ave over Herndon Canal is a concrete stringer/multi-beam or girder carrying N Biola Ave over Herndon Canal in Fresno County, California. It was built in 1935 and reconstructed in 1960, so it is 90 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 550 vehicles a day, roughly 10% of them trucks, projected to reach 643 by 2043. The structure is 27 ft (8.2 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesN Biola Ave
CrossesHerndon Canal
LocationAt Barstow Ave
RouteCounty Highway 0
CountyFresno County
StateCalifornia
Coordinates36.81509, -120.01557
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating31.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length27 ft (8.2 m)
Longest span25 ft (7.6 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2010)
Projected traffic643 by 2043
Trucks10%
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 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 Biola Ave over Herndon Canal built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1960.

What condition is N Biola 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 January 2025.

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

About 550 vehicles per day (2010 count), of which roughly 10% are trucks.

How long is N Biola Ave over Herndon Canal?

The structure is 27 ft (8.2 m) long with a longest span of 25 ft (7.6 m) and a deck 25 ft wide.

Who owns N Biola Ave over Herndon Canal?

It is owned by the County Highway Agency.