Structure 25 0064 · El Dorado County, CA

U.s. Highway 50 over Smith Flat Road

Carries U.s. Highway 50 over Smith Flat Road, 03-ed-050-19.61-plcr.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT219 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

219 ft end to end, longest span 77 ft: about 3 semi-trucks nose to tail. Lengths and the semi-truck 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 tee-beam bridge.

Built196165 years old
Length218.8 ft66.7 m
Daily traffic30,500counted 2016
Last inspectedSeptember 2024every 24 months

Location

StateCalifornia
CountyEl Dorado
Location03-ed-050-19.61-plcr
CarriesU.s. Highway 50
CrossesSmith Flat Road
Coordinates38.73339, -120.77133

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length218.8 ft (66.7 m)
Max Span77.1 ft (23.5 m)
Deck Width88.6 ft (27 m)
Deck Area1800.9 sq m
Main Spans3
Year Built1961

Traffic

Avg Daily Traffic30,500 (2016)
Truck Traffic6%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number25 0064

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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