US Bridges

Winding Road over Clark Fork of Stanislaus

Good

Tuolumne County, California · No Data Entered · Structure no. 051653000001041

Built
1940
85 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
112 ft
3 main spans
Daily traffic
350
Owner
Federal
U.S. Forest Service

About this bridge

Winding Road over Clark Fork of Stanislaus is a steel stringer/multi-beam or girder carrying Winding Road over Clark Fork of Stanislaus in Tuolumne County, California. It was built in 1940, so it is 85 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 350 vehicles a day, roughly 1% of them trucks, projected to reach 525 by 2045. The structure is 112 ft (34.1 m) long and 20 ft wide.

Location

Open in Google Maps
CarriesWinding Road
CrossesClark Fork of Stanislaus
LocationNo Data Entered
RouteFederal Lands Road 7N76
CountyTuolumne County
StateCalifornia
Coordinates38.3993, -119.8021
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
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 within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating32.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length112 ft (34.1 m)
Longest span50 ft (15.2 m)
Deck width20 ft (6 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (—)
Projected traffic525 by 2045
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Winding Road over Clark Fork of Stanislaus built?

It was built in 1940, making it 85 years old in 2025.

What condition is Winding Road over Clark Fork of Stanislaus 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 Winding Road over Clark Fork of Stanislaus carry?

About 350 vehicles per day (latest count), of which roughly 1% are trucks.

How long is Winding Road over Clark Fork of Stanislaus?

The structure is 112 ft (34.1 m) long with a longest span of 50 ft (15.2 m) and a deck 20 ft wide.

Who owns Winding Road over Clark Fork of Stanislaus?

It is owned by the U.S. Forest Service.