US Bridges

Winding Road over So. Fork Silver Creek

Fair

El Dorado County, California · No Data Entered · Structure no. 050355000001026

Built
1956
69 years old
Condition
Fair
inspected September 2024
Type
Girder and Floorbeam System
Steel
Length
28 ft
1 main span
Daily traffic
25
Owner
Federal
U.S. Forest Service

About this bridge

Winding Road over So. Fork Silver Creek is a steel girder and floorbeam system carrying Winding Road over So. Fork Silver Creek in El Dorado County, California. It was built in 1956, so it is 69 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 25 vehicles a day, projected to reach 37 by 2045. The structure is 28 ft (8.5 m) long and 14 ft wide.

CarriesWinding Road
CrossesSo. Fork Silver Creek
LocationNo Data Entered
RouteFederal Lands Road 12N23
Coordinates38.84476, -120.23589
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.8 US tons
Inventory rating23.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (—)
Projected traffic37 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 So. Fork Silver Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Winding Road over So. Fork Silver 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 September 2024.

How much traffic does Winding Road over So. Fork Silver Creek carry?

About 25 vehicles per day (latest count).

How long is Winding Road over So. Fork Silver Creek?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 14 ft wide.

Who owns Winding Road over So. Fork Silver Creek?

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