Structure 29 0040 · San Joaquin County, CA

State Route 26 over Stockton Diverting Canal

Carries State Route 26 over Stockton Diverting Canal, 10-sj-026-1.90.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT288 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

288 ft end to end, longest span 30 ft: about 4 semi-trucks nose to tail. 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.

Built1967rebuilt 1988
Length288.1 ft87.8 m
Daily traffic10,200counted 2009
Last inspectedMarch 2023every 24 months

Location

StateCalifornia
CountySan Joaquin
Location10-sj-026-1.90
CarriesState Route 26
CrossesStockton Diverting Canal
Coordinates37.97395, -121.23196

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length288.1 ft (87.8 m)
Max Span29.9 ft (9.1 m)
Deck Width63.3 ft (19.3 m)
Deck Area1694.5 sq m
Main Spans10
Year Built1967 (reconstructed 1988)

Traffic

Avg Daily Traffic10,200 (2009)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number29 0040

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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