Structure 37 0353F · Santa Clara County, CA

S680-s101 Connectr over I 280 I 680 US 101 Story

Carries S680-s101 Connectr over I 280 I 680 US 101 Story, 04-scl-680-m0.01-sjs.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
6,537 FT OVERALL1,000 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 7/9Substructure 7/9

6,537 ft end to end, longest span 169 ft: about 18 football fields, or 1.2 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.

Built198244 years old
Length6537.1 ft1992.5 m
Daily traffic36,000counted 2009
Last inspectedJuly 2023every 24 months

Location

StateCalifornia
CountySanta Clara
Location04-scl-680-m0.01-sjs
CarriesS680-s101 Connectr
CrossesI 280 I 680 US 101 Story
Coordinates37.33736, -121.85110

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length6537.1 ft (1992.5 m)
Max Span169.0 ft (51.5 m)
Deck Width42.0 ft (12.8 m)
Deck Area25,504 sq m
Main Spans50
Year Built1982

Traffic

Avg Daily Traffic36,000 (2009)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge17

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number37 0353F

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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