US Bridges

N Golden State Bl over Herndon Canal

Poor

Fresno County, California · 0.05 MI SE of Barstow · Structure no. 42C0232

Built
1925
100 years old, rebuilt 1936
Condition
Poor
inspected December 2024
Type
Culvert
Concrete Continuous
Length
41 ft
5 main spans
Daily traffic
9,815
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

N Golden State Bl over Herndon Canal is a concrete continuous culvert carrying N Golden State Bl over Herndon Canal in Fresno County, California. It was built in 1925 and reconstructed in 1936, so it is 100 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 9,815 vehicles a day, roughly 5% of them trucks, projected to reach 11,222 by 2042. The structure is 41 ft (12.5 m) long and 70 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesN Golden State Bl
CrossesHerndon Canal
Location0.05 MI SE of Barstow
RouteCity Street 0
CountyFresno County
StateCalifornia
Coordinates36.81492, -119.88682
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2024
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.7 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length41 ft (12.5 m)
Longest span8 ft (2.5 m)
Deck width70 ft (21.2 m)
Roadway width66 ft (20.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,815 (2010)
Projected traffic11,222 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was N Golden State Bl over Herndon Canal built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1936.

What condition is N Golden State Bl over Herndon Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.

How much traffic does N Golden State Bl over Herndon Canal carry?

About 9,815 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is N Golden State Bl over Herndon Canal?

The structure is 41 ft (12.5 m) long with a longest span of 8 ft (2.5 m) and a deck 70 ft wide.

Who owns N Golden State Bl over Herndon Canal?

It is owned by the City or Municipal Highway Agency.