Structure 37 0131F · Santa Clara County, CA

S17-s280 Connector over Interstate 280 & Ramps

Carries S17-s280 Connector over Interstate 280 & Ramps, 04-scl-017-13.93-sjs.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT194 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 8/9

194 ft end to end, longest span 101 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 multi-beam bridge.

Built197155 years old
Length193.9 ft59.1 m
Daily traffic24,400counted 2011
Last inspectedJuly 2024every 24 months

Location

StateCalifornia
CountySanta Clara
Location04-scl-017-13.93-sjs
CarriesS17-s280 Connector
CrossesInterstate 280 & Ramps
Coordinates37.31706, -121.94067

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length193.9 ft (59.1 m)
Max Span100.7 ft (30.7 m)
Deck Width34.1 ft (10.4 m)
Deck Area614.6 sq m
Main Spans2
Year Built1971

Traffic

Avg Daily Traffic24,400 (2011)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge9

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number37 0131F

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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