Structure 38 0007 · Stanislaus County, CA

State Route 99 over Ceres Main Canal

Carries State Route 99 over Ceres Main Canal, 10-sta-099-r10.03.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT32 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 8/9

32 ft end to end. 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.

Built1941rebuilt 1965
Length32.5 ft9.9 m
Daily traffic96,000counted 2011
Last inspectedJanuary 2025every 48 months

Location

StateCalifornia
CountyStanislaus
Location10-sta-099-r10.03
CarriesState Route 99
CrossesCeres Main Canal
Coordinates37.57465, -120.93705

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length32.5 ft (9.9 m)
Max Span30.5 ft (9.3 m)
Deck Width112.5 ft (34.3 m)
Deck Area339.6 sq m
Main Spans1
Year Built1941 (reconstructed 1965)

Traffic

Avg Daily Traffic96,000 (2011)
Truck Traffic17%
Lanes On Bridge6

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number38 0007

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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