Structure 37C0058 · Santa Clara County, CA

Mathilda AVE over Caltrain Up Rr Evelyn Av

Carries Mathilda AVE over Caltrain Up Rr Evelyn Av, At Evelyn AVE.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT741 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 7/9

741 ft end to end, longest span 109 ft: about 2.1 football fields. 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.

Built1965rebuilt 2012
Length741.5 ft226 m
Daily traffic45,063counted 2018
Last inspectedApril 2024every 24 months

Location

StateCalifornia
CountySanta Clara
LocationAt Evelyn AVE
CarriesMathilda AVE
CrossesCaltrain Up Rr Evelyn Av
Coordinates37.37872, -122.03357

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length741.5 ft (226 m)
Max Span109.3 ft (33.3 m)
Deck Width149.3 ft (45.5 m)
Deck Area10,283 sq m
Main Spans8
Year Built1965 (reconstructed 2012)

Traffic

Avg Daily Traffic45,063 (2018)
Truck Traffic2%
Lanes On Bridge6
Lanes Under Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number37C0058

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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