US Bridges

Winding Road over Stanislaus River

PoorPosted for load

Tuolumne County, California · No Data Entered · Structure no. 051652000001027

Built
1926
99 years old
Condition
Poor
inspected September 2024
Type
Truss - Thru
Steel
Length
166 ft
3 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Winding Road over Stanislaus River is a steel truss - thru carrying Winding Road over Stanislaus River in Tuolumne County, California. It was built in 1926, so it is 99 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 166 ft (50.6 m) long and 12 ft wide.

Location

Open in Google Maps
CarriesWinding Road
CrossesStanislaus River
LocationNo Data Entered
RouteFederal Lands Road 5N75
CountyTuolumne County
StateCalifornia
Coordinates38.30437, -120.23418
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation*: *
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating—
Inventory rating—

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans3
Design loadH 15
Structure length166 ft (50.6 m)
Longest span101 ft (30.8 m)
Deck width12 ft (3.7 m)
Roadway width10 ft (3.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
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 Stanislaus River built?

It was built in 1926, making it 99 years old in 2025.

What condition is Winding Road over Stanislaus River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Winding Road over Stanislaus River carry?

About 50 vehicles per day (latest count).

How long is Winding Road over Stanislaus River?

The structure is 166 ft (50.6 m) long with a longest span of 101 ft (30.8 m) and a deck 12 ft wide.

Who owns Winding Road over Stanislaus River?

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