Structure 50356000001011 · El Dorado County, CA

Winding Road over Silver Fork Amer. River

Carries Winding Road over Silver Fork Amer. River, No Data Entered.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT91 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

91 ft end to end. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a box-beam bridge.

Built196957 years old
Length90.9 ft27.7 m
Daily traffic10counted 2016
Last inspectedSeptember 2024every 24 months

Location

StateCalifornia
CountyEl Dorado
LocationNo Data Entered
CarriesWinding Road
CrossesSilver Fork Amer. River
Coordinates38.69461, -120.20107

Physical Characteristics

MaterialConcrete
DesignBox Beam - Single/Spread
Total Length90.9 ft (27.7 m)
Max Span90.9 ft (27.7 m)
Deck Width27.9 ft (8.5 m)
Deck Area235.4 sq m
Main Spans1
Year Built1969

Traffic

Avg Daily Traffic10 (2016)
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number050356000001011

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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