Structure 37 0608 · Santa Clara County, CA

State Route 87 over Hedding Street

Carries State Route 87 over Hedding Street, 04-scl-087-7.23-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 FT121 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

121 ft end to end. 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.

Built200323 years old
Length120.7 ft36.8 m
Daily traffic93,000counted 2009
Last inspectedJanuary 2024every 24 months

Location

StateCalifornia
CountySanta Clara
Location04-scl-087-7.23-sjs
CarriesState Route 87
CrossesHedding Street
Coordinates37.35042, -121.90901

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length120.7 ft (36.8 m)
Max Span118.1 ft (36 m)
Deck Width123.7 ft (37.7 m)
Deck Area1387.4 sq m
Main Spans1
Year Built2003

Traffic

Avg Daily Traffic93,000 (2009)
Truck Traffic9%
Lanes On Bridge6
Lanes Under Bridge3

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number37 0608

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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