US Bridges

N Piedra RD over Friant-Kern Canal

Good

Fresno County, California · 2.5 MI NE of SR 180 · Structure no. 42C0290

Built
1953
72 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
195 ft
3 main spans
Daily traffic
1,700
2010 count
Owner
County
County Highway Agency

About this bridge

N Piedra RD over Friant-Kern Canal is a steel continuous stringer/multi-beam or girder carrying N Piedra RD over Friant-Kern Canal in Fresno County, California. It was built in 1953, so it is 72 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,700 vehicles a day, roughly 3% of them trucks, projected to reach 1,278 by 2044. The structure is 195 ft (59.4 m) long and 34 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesN Piedra RD
CrossesFriant-Kern Canal
Location2.5 MI NE of SR 180
RouteCounty Highway 0
Coordinates36.75414, -119.43606
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating34 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length195 ft (59.4 m)
Longest span79 ft (24.1 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2010)
Projected traffic1,278 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N Piedra RD over Friant-Kern Canal built?

It was built in 1953, making it 72 years old in 2025.

What condition is N Piedra RD over Friant-Kern Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does N Piedra RD over Friant-Kern Canal carry?

About 1,700 vehicles per day (2010 count), of which roughly 3% are trucks.

How long is N Piedra RD over Friant-Kern Canal?

The structure is 195 ft (59.4 m) long with a longest span of 79 ft (24.1 m) and a deck 34 ft wide.

Who owns N Piedra RD over Friant-Kern Canal?

It is owned by the County Highway Agency.