Structure 37 0414K · Santa Clara County, CA

S87 - Santa Teresa over Chynoweth AVE & Vta Lrt

Carries S87 - Santa Teresa over Chynoweth AVE & Vta Lrt, 04-scl-087-0.21-sjs.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT465 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

465 ft end to end, longest span 122 ft: about 6 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 box-beam bridge.

Built199135 years old
Length464.9 ft141.7 m
Daily traffic7,500counted 1998
Last inspectedApril 2023every 24 months

Location

StateCalifornia
CountySanta Clara
Location04-scl-087-0.21-sjs
CarriesS87 - Santa Teresa
CrossesChynoweth AVE & Vta Lrt
Coordinates37.25822, -121.85928

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length464.9 ft (141.7 m)
Max Span122.4 ft (37.3 m)
Deck Width39.4 ft (12 m)
Deck Area1700.4 sq m
Main Spans4
Year Built1991

Traffic

Avg Daily Traffic7,500 (1998)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number37 0414K

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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