Structure 37 0207 · Santa Clara County, CA

State Route 85 over Caltrain Up Rr Central

Carries State Route 85 over Caltrain Up Rr Central, 04-scl-085-r22.63-mvw.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT436 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

436 ft end to end, longest span 88 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 multi-beam bridge.

Built1965rebuilt 1998
Length436.4 ft133 m
Daily traffic115,000counted 2012
Last inspectedJune 2024every 48 months

Location

StateCalifornia
CountySanta Clara
Location04-scl-085-r22.63-mvw
CarriesState Route 85
CrossesCaltrain Up Rr Central
Coordinates37.39085, -122.06841

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length436.4 ft (133 m)
Max Span87.9 ft (26.8 m)
Deck Width112.5 ft (34.3 m)
Deck Area4561.9 sq m
Main Spans7
Year Built1965 (reconstructed 1998)

Traffic

Avg Daily Traffic115,000 (2012)
Truck Traffic3%
Lanes On Bridge6
Lanes Under Bridge10

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number37 0207

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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