Structure 29C0407 · San Joaquin County, CA

Carolyn Weston Blv over French Camp Slough

Carries Carolyn Weston Blv over French Camp Slough, 0.7 Mi West Of Manthey RD.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure8/9 · Very Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT352 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 8/9

352 ft end to end, longest span 148 ft: about 5 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.

Built199729 years old
Length352.0 ft107.3 m
Daily traffic16,700counted 2013
Last inspectedFebruary 2025every 24 months

Location

StateCalifornia
CountySan Joaquin
Location0.7 Mi West Of Manthey RD
CarriesCarolyn Weston Blv
CrossesFrench Camp Slough
Coordinates37.91264, -121.29251

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length352.0 ft (107.3 m)
Max Span148.0 ft (45.1 m)
Deck Width77.8 ft (23.7 m)
Deck Area2543.0 sq m
Main Spans8
Year Built1997

Traffic

Avg Daily Traffic16,700 (2013)
Truck Traffic3%
Lanes On Bridge6

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number29C0407

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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