Structure 29 0176L · San Joaquin County, CA

Interstate 5 SB over Weber Pershing Fremont

Carries Interstate 5 SB over Weber Pershing Fremont, 10-sj-005-26.47-stkn.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
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
SEMI-TRUCK · 72 FT2,725 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 7/9Substructure 7/9

2,725 ft end to end, longest span 360 ft: about 7.6 football fields. 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 multi-beam bridge.

Built197254 years old
Length2725.1 ft830.6 m
Daily traffic113,000counted 2009
Last inspectedAugust 2023every 24 months

Location

StateCalifornia
CountySan Joaquin
Location10-sj-005-26.47-stkn
CarriesInterstate 5 SB
CrossesWeber Pershing Fremont
Coordinates37.95101, -121.30469

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length2725.1 ft (830.6 m)
Max Span359.9 ft (109.7 m)
Deck Width67.9 ft (20.7 m)
Deck Area17193.4 sq m
Main Spans13
Year Built1972

Traffic

Avg Daily Traffic113,000 (2009)
Truck Traffic7%
Lanes On Bridge5
Lanes Under Bridge8

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 0176L

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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