Structure 29 0265R · San Joaquin County, CA

Interstate 5 NB over Tom Paine Slough

Carries Interstate 5 NB over Tom Paine Slough, 10-sj-005-r12.39.

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
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT195 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 7/9

195 ft end to end, longest span 30 ft: about 3 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.

Built197155 years old
Length194.9 ft59.4 m
Daily traffic23,750counted 2010
Last inspectedOctober 2023every 24 months

Location

StateCalifornia
CountySan Joaquin
Location10-sj-005-r12.39
CarriesInterstate 5 NB
CrossesTom Paine Slough
Coordinates37.76475, -121.33466

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length194.9 ft (59.4 m)
Max Span29.9 ft (9.1 m)
Deck Width54.1 ft (16.5 m)
Deck Area980.1 sq m
Main Spans7
Year Built1971

Traffic

Avg Daily Traffic23,750 (2010)
Truck Traffic31%
Lanes On Bridge3

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number29 0265R

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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