US Bridges

Custer Ave over Colony Main Canal

Fair

Fresno County, California · 0.5 MI S of Valeria Ave · Structure no. 42C0397

Built
1935
90 years old, rebuilt 1977
Condition
Fair
inspected December 2023
Type
Slab
Concrete Continuous
Length
36 ft
2 main spans
Daily traffic
250
2010 count
Owner
County
County Highway Agency

About this bridge

Custer Ave over Colony Main Canal is a concrete continuous slab carrying Custer Ave over Colony Main Canal in Fresno County, California. It was built in 1935 and reconstructed in 1977, 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 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 250 vehicles a day, roughly 15% of them trucks, projected to reach 305 by 2040. The structure is 36 ft (11 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCuster Ave
CrossesColony Main Canal
Location0.5 MI S of Valeria Ave
RouteCounty Highway 0
CountyFresno County
StateCalifornia
Coordinates36.97433, -120.59048
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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating71.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length36 ft (11 m)
Longest span17 ft (5.3 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2010)
Projected traffic305 by 2040
Trucks15%
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 Custer Ave over Colony Main Canal built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1977.

What condition is Custer Ave over Colony Main 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 2023.

How much traffic does Custer Ave over Colony Main Canal carry?

About 250 vehicles per day (2010 count), of which roughly 15% are trucks.

How long is Custer Ave over Colony Main Canal?

The structure is 36 ft (11 m) long with a longest span of 17 ft (5.3 m) and a deck 24 ft wide.

Who owns Custer Ave over Colony Main Canal?

It is owned by the County Highway Agency.