US Bridges

Winding Road over Silver Fork Amer. River

Fair

El Dorado County, California · No Data Entered · Structure no. 050356000001018

Built
1954
71 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
124 ft
3 main spans
Daily traffic
10
2016 count
Owner
Federal
U.S. Forest Service

About this bridge

Winding Road over Silver Fork Amer. River is a steel stringer/multi-beam or girder carrying Winding Road over Silver Fork Amer. River in El Dorado County, California. It was built in 1954, so it is 71 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 5 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 10 vehicles a day, projected to reach 15 by 2045. The structure is 124 ft (37.8 m) long and 25 ft wide.

CarriesWinding Road
CrossesSilver Fork Amer. River
LocationNo Data Entered
RouteFederal Lands Road 10N28
Coordinates38.73037, -120.24205
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation*: *
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating—
Inventory rating—

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length124 ft (37.8 m)
Longest span64 ft (19.5 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2016)
Projected traffic15 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-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 Silver Fork Amer. River built?

It was built in 1954, making it 71 years old in 2025.

What condition is Winding Road over Silver Fork Amer. River 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 Silver Fork Amer. River carry?

About 10 vehicles per day (2016 count).

How long is Winding Road over Silver Fork Amer. River?

The structure is 124 ft (37.8 m) long with a longest span of 64 ft (19.5 m) and a deck 25 ft wide.

Who owns Winding Road over Silver Fork Amer. River?

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