US Bridges

Cooperstown Road over North Fork Dry Creek

Good

Stanislaus County, California · 1.2 MI E of Wilms RD · Structure no. 38C0008

Built
1989
36 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
161 ft
1 main span
Daily traffic
35
2017 count
Owner
County
County Highway Agency

About this bridge

Cooperstown Road over North Fork Dry Creek is a prestressed concrete box beam or girders - multiple carrying Cooperstown Road over North Fork Dry Creek in Stanislaus County, California. It was built in 1989, so it is 36 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 35 vehicles a day, roughly 26% of them trucks, projected to reach 109 by 2045. The structure is 161 ft (49.1 m) long and 33 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesCooperstown Road
CrossesNorth Fork Dry Creek
Location1.2 MI E of Wilms RD
RouteCounty Highway 0
Coordinates37.73665, -120.57057
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length161 ft (49.1 m)
Longest span160 ft (48.8 m)
Deck width33 ft (10.1 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2017)
Projected traffic109 by 2045
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 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 Cooperstown Road over North Fork Dry Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Cooperstown Road over North Fork Dry Creek 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 September 2023.

How much traffic does Cooperstown Road over North Fork Dry Creek carry?

About 35 vehicles per day (2017 count), of which roughly 26% are trucks.

How long is Cooperstown Road over North Fork Dry Creek?

The structure is 161 ft (49.1 m) long with a longest span of 160 ft (48.8 m) and a deck 33 ft wide.

Who owns Cooperstown Road over North Fork Dry Creek?

It is owned by the County Highway Agency.