Structure 29C0141 · San Joaquin County, CA

El Dorado ST over Bianchi Road

Carries El Dorado ST over Bianchi Road, Over Bianchi RD.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT126 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 4/9 · sets the ratingSubstructure 5/9

126 ft end to end, longest span 36 ft. 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 slab bridge.

Built196264 years old
Length126.0 ft38.4 m
Daily traffic31,000counted 2005
Last inspectedJanuary 2024every 24 months

Location

StateCalifornia
CountySan Joaquin
LocationOver Bianchi RD
CarriesEl Dorado ST
CrossesBianchi Road
Coordinates37.99179, -121.30393

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length126.0 ft (38.4 m)
Max Span36.1 ft (11 m)
Deck Width79.4 ft (24.2 m)
Deck Area929.3 sq m
Main Spans4
Year Built1962

Traffic

Avg Daily Traffic31,000 (2005)
Truck Traffic5%
Lanes On Bridge4
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number29C0141

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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