Structure 37 0420L · Santa Clara County, CA

SB State Route 87 over Abandoned Up Rr Row

Carries SB State Route 87 over Abandoned Up Rr Row, 04-scl-087-3.88-sjs.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT138 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

138 ft end to end, longest span 62 ft. 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.

Built1990rebuilt 2007
Length138.1 ft42.1 m
Daily traffic65,000counted 2009
Last inspectedApril 2021every 48 months

Location

StateCalifornia
CountySanta Clara
Location04-scl-087-3.88-sjs
CarriesSB State Route 87
CrossesAbandoned Up Rr Row
Coordinates37.30761, -121.88152

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length138.1 ft (42.1 m)
Max Span62.0 ft (18.9 m)
Deck Width68.2 ft (20.8 m)
Deck Area875.7 sq m
Main Spans3
Year Built1990 (reconstructed 2007)

Traffic

Avg Daily Traffic65,000 (2009)
Truck Traffic3%
Lanes On Bridge4

Inspection & Ownership

Last InspectionApril 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number37 0420L

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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