Structure 29C0088 · San Joaquin County, CA

Weber ST over Mormon Slough

Carries Weber ST over Mormon Slough, 0.3 Mi W Lincoln ST.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT152 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 152 ft across with 6 openings: about 2 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, so those are drawn as typical for a culvert.

Built196957 years old
Length151.9 ft46.3 m
Daily traffic6,100counted 2005
Last inspectedJanuary 2025every 48 months

Location

StateCalifornia
CountySan Joaquin
Location0.3 Mi W Lincoln ST
CarriesWeber ST
CrossesMormon Slough
Coordinates37.95147, -121.30367

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length151.9 ft (46.3 m)
Max Span13.1 ft (4 m)
Deck Width109.9 ft (33.5 m)
Deck Area1551.0 sq m
Main Spans6
Year Built1969

Traffic

Avg Daily Traffic6,100 (2005)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number29C0088

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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