US Bridges

N Piedra Road over Unnamed Ditch

Good

Fresno County, California · 5 MI NE of SR 180 · Structure no. 42C0625

Built
1973
52 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
2,400
2010 count
Owner
County
County Highway Agency

About this bridge

N Piedra Road over Unnamed Ditch is a concrete continuous culvert carrying N Piedra Road over Unnamed Ditch in Fresno County, California. It was built in 1973, so it is 52 years old, younger 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 2,400 vehicles a day, roughly 3% of them trucks, projected to reach 1,715 by 2043. The structure is 23 ft (7 m) long and 42 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesN Piedra Road
CrossesUnnamed Ditch
Location5 MI NE of SR 180
RouteCounty Highway 0
Coordinates36.77848, -119.40966
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2010)
Projected traffic1,715 by 2043
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was N Piedra Road over Unnamed Ditch built?

It was built in 1973, making it 52 years old in 2025.

What condition is N Piedra Road over Unnamed Ditch 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 Road over Unnamed Ditch carry?

About 2,400 vehicles per day (2010 count), of which roughly 3% are trucks.

How long is N Piedra Road over Unnamed Ditch?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 42 ft wide.

Who owns N Piedra Road over Unnamed Ditch?

It is owned by the County Highway Agency.