US Bridges

Herndon Ave over Interstate 5

Fair

Fresno County, California · 06-FRE-005-64.62 · Structure no. 42 0255

Built
1966
59 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
222 ft
2 main spans
Daily traffic
65
2017 count
Owner
State
State Highway Agency

About this bridge

Herndon Ave over Interstate 5 is a concrete continuous box beam or girders - multiple carrying Herndon Ave over Interstate 5 in Fresno County, California. It was built in 1966, so it is 59 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 65 vehicles a day, roughly 10% of them trucks, projected to reach 104 by 2041. The structure is 222 ft (67.7 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesHerndon Ave
CrossesInterstate 5
Location06-FRE-005-64.62
RouteCounty Highway 0
Coordinates36.83542, -120.76412
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating52.9 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length222 ft (67.7 m)
Longest span110 ft (33.5 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2017)
Projected traffic104 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Herndon Ave over Interstate 5 built?

It was built in 1966, making it 59 years old in 2025.

What condition is Herndon Ave over Interstate 5 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 October 2023.

How much traffic does Herndon Ave over Interstate 5 carry?

About 65 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is Herndon Ave over Interstate 5?

The structure is 222 ft (67.7 m) long with a longest span of 110 ft (33.5 m) and a deck 30 ft wide.

Who owns Herndon Ave over Interstate 5?

It is owned by the State Highway Agency.