US Bridges

Winding Road over Rock Creek

Fair

Madera County, California · 07S47-1.0 · Structure no. 051551000001071

Built
1936
89 years old, rebuilt 1991
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Winding Road over Rock Creek is a steel stringer/multi-beam or girder carrying Winding Road over Rock Creek in Madera County, California. It was built in 1936 and reconstructed in 1991, so it is 89 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 31 ft (9.6 m) long and 20 ft wide.

Location

Open in Google Maps
CarriesWinding Road
CrossesRock Creek
Location07S47-1.0
RouteFederal Lands Road 7S04
CountyMadera County
StateCalifornia
Coordinates37.29144, -119.36164
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation*: *
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating—
Inventory rating—

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length31 ft (9.6 m)
Longest span29 ft (8.8 m)
Deck width20 ft (6.1 m)
Roadway width14 ft (4.3 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 Rock Creek built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1991.

What condition is Winding Road over Rock Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does Winding Road over Rock Creek carry?

About 50 vehicles per day (latest count).

How long is Winding Road over Rock Creek?

The structure is 31 ft (9.6 m) long with a longest span of 29 ft (8.8 m) and a deck 20 ft wide.

Who owns Winding Road over Rock Creek?

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