Structure 29 0233H · San Joaquin County, CA

N5-w4 & S5-e4 Conn over I 5 & Sr4 Cons Slu 3 Sts

Carries N5-w4 & S5-e4 Conn over I 5 & Sr4 Cons Slu 3 Sts, 10-sj-005-25.87-stkn.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
5,492 FT OVERALL1,000 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

5,492 ft end to end, longest span 194 ft: about 15 football fields, or 1.0 miles. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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 box-beam bridge.

Built197254 years old
Length5492.1 ft1,674 m
Daily traffic37,450counted 2009
Last inspectedAugust 2023every 24 months

Location

StateCalifornia
CountySan Joaquin
Location10-sj-005-25.87-stkn
CarriesN5-w4 & S5-e4 Conn
CrossesI 5 & Sr4 Cons Slu 3 Sts
Coordinates37.94586, -121.29832

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length5492.1 ft (1,674 m)
Max Span193.9 ft (59.1 m)
Deck Width41.0 ft (12.5 m)
Deck Area20,925 sq m
Main Spans10
Year Built1972

Traffic

Avg Daily Traffic37,450 (2009)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge23

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number29 0233H

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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