Structure 38 0063 · Stanislaus County, CA

State Route 132 over Quartz Ledge Creek

Carries State Route 132 over Quartz Ledge Creek, 10-sta-132-49.62.

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 FT55 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

55 ft end to end, longest span 25 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 tee-beam bridge.

Built1918108 years old
Length55.1 ft16.8 m
Daily traffic1,550counted 2015
Last inspectedMarch 2024every 24 months

Location

StateCalifornia
CountyStanislaus
Location10-sta-132-49.62
CarriesState Route 132
CrossesQuartz Ledge Creek
Coordinates37.64580, -120.40958

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length55.1 ft (16.8 m)
Max Span24.9 ft (7.6 m)
Deck Width22.0 ft (6.7 m)
Deck Area112.6 sq m
Main Spans2
Year Built1918

Traffic

Avg Daily Traffic1,550 (2015)
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number38 0063

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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