Structure 38C0308 · Stanislaus County, CA

Williams Road over M.i.d. Lateral #6

Carries Williams Road over M.i.d. Lateral #6, 0.4 Mi N/o Covert RD.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT28 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

28 ft end to end, longest span 14 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.

Built1925101 years old
Length27.9 ft8.5 m
Daily traffic72counted 2019
Last inspectedFebruary 2024every 24 months

Location

StateCalifornia
CountyStanislaus
Location0.4 Mi N/o Covert RD
CarriesWilliams Road
CrossesM.i.d. Lateral #6
Coordinates37.70876, -121.11403

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length27.9 ft (8.5 m)
Max Span14.1 ft (4.3 m)
Deck Width22.0 ft (6.7 m)
Deck Area57.0 sq m
Main Spans2
Year Built1925

Traffic

Avg Daily Traffic72 (2019)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number38C0308

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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