Structure 16 0052 · Yuba County, CA

State Route 20 over Smartsville Farm Canal

Carries State Route 20 over Smartsville Farm Canal, 03-yub-020-r20.92.

Overall conditionFair

Set by its lowest-rated component: Deck at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT302 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

302 ft end to end, longest span 149 ft: about 4 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 multi-beam bridge.

Built20197 years old
Length301.8 ft92 m
Daily traffic8,421counted 2019
Last inspectedSeptember 2023every 24 months

Location

StateCalifornia
CountyYuba
Location03-yub-020-r20.92
CarriesState Route 20
CrossesSmartsville Farm Canal
Coordinates39.20094, -121.29468

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length301.8 ft (92 m)
Max Span148.6 ft (45.3 m)
Deck Width43.6 ft (13.3 m)
Deck Area1223.6 sq m
Main Spans2
Year Built2019

Traffic

Avg Daily Traffic8,421 (2019)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number16 0052

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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