Structure 37C0839 · Santa Clara County, CA

Old Mtnview-alviso over Calabazas Creek Trail

Carries Old Mtnview-alviso over Calabazas Creek Trail, S Of Route 237 Pm 5.28.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT125 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

125 ft end to end, longest span 50 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 slab bridge.

Built20188 years old
Length125.0 ft38.1 m
Daily traffic4,698counted 2018
Last inspectedApril 2024every 48 months

Location

StateCalifornia
CountySanta Clara
LocationS Of Route 237 Pm 5.28
CarriesOld Mtnview-alviso
CrossesCalabazas Creek Trail
Coordinates37.41067, -121.98692

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length125.0 ft (38.1 m)
Max Span49.9 ft (15.2 m)
Deck Width52.5 ft (16 m)
Deck Area609.6 sq m
Main Spans3
Year Built2018

Traffic

Avg Daily Traffic4,698 (2018)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number37C0839

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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