US Bridges

Winding Road over South Fork Rubicon

Good

El Dorado County, California · No Data Entered · Structure no. 050355000001034

Built
1970
55 years old
Condition
Good
inspected September 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
150 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Winding Road over South Fork Rubicon is a steel stringer/multi-beam or girder carrying Winding Road over South Fork Rubicon in El Dorado County, California. It was built in 1970, so it is 55 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 150 ft (45.7 m) long and 14 ft wide.

CarriesWinding Road
CrossesSouth Fork Rubicon
LocationNo Data Entered
RouteFederal Lands Road 13N28
Coordinates38.95383, -120.39935
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 2022
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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating61.8 US tons
Inventory rating47.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length150 ft (45.7 m)
Longest span150 ft (45.7 m)
Deck width14 ft (4.3 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 South Fork Rubicon built?

It was built in 1970, making it 55 years old in 2025.

What condition is Winding Road over South Fork Rubicon 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 2022.

How much traffic does Winding Road over South Fork Rubicon carry?

About 50 vehicles per day (latest count).

How long is Winding Road over South Fork Rubicon?

The structure is 150 ft (45.7 m) long with a longest span of 150 ft (45.7 m) and a deck 14 ft wide.

Who owns Winding Road over South Fork Rubicon?

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