US Bridges

N Frankwood Ave over Alta Main Canal

Fair

Fresno County, California · 1.15 MI S of Piedra RD · Structure no. 42C0289

Built
1925
100 years old
Condition
Fair
inspected December 2024
Type
Girder and Floorbeam System
Concrete Continuous
Length
73 ft
4 main spans
Daily traffic
1,080
2012 count
Owner
County
County Highway Agency

About this bridge

N Frankwood Ave over Alta Main Canal is a concrete continuous girder and floorbeam system carrying N Frankwood Ave over Alta Main Canal in Fresno County, California. It was built in 1925, 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 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 1,080 vehicles a day, roughly 5% of them trucks, projected to reach 1,278 by 2043. The structure is 73 ft (22.3 m) long and 18 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesN Frankwood Ave
CrossesAlta Main Canal
Location1.15 MI S of Piedra RD
RouteCounty Highway 0
CountyFresno County
StateCalifornia
Coordinates36.74285, -119.44592
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating30.3 US tons
Inventory rating18.2 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length73 ft (22.3 m)
Longest span19 ft (5.8 m)
Deck width18 ft (5.4 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,080 (2012)
Projected traffic1,278 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Frankwood Ave over Alta Main Canal built?

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

What condition is N Frankwood Ave over Alta 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 2024.

How much traffic does N Frankwood Ave over Alta Main Canal carry?

About 1,080 vehicles per day (2012 count), of which roughly 5% are trucks.

How long is N Frankwood Ave over Alta Main Canal?

The structure is 73 ft (22.3 m) long with a longest span of 19 ft (5.8 m) and a deck 18 ft wide.

Who owns N Frankwood Ave over Alta Main Canal?

It is owned by the County Highway Agency.