Structure 29C0301 · San Joaquin County, CA

Ashley RD over Calaveras River

Carries Ashley RD over Calaveras River, 0.2 Mi S Foppiano Lane.

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 overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT58 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

58 ft end to end, longest span 28 ft. 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 slab bridge.

Built197947 years old
Length58.1 ft17.7 m
Daily traffic802counted 2013
Last inspectedFebruary 2025every 24 months

Location

StateCalifornia
CountySan Joaquin
Location0.2 Mi S Foppiano Lane
CarriesAshley RD
CrossesCalaveras River
Coordinates38.02562, -121.22368

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length58.1 ft (17.7 m)
Max Span27.9 ft (8.5 m)
Deck Width32.5 ft (9.9 m)
Deck Area175.2 sq m
Main Spans2
Year Built1979

Traffic

Avg Daily Traffic802 (2013)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number29C0301

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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