Structure 37C0421 · Santa Clara County, CA

Maintanence Road over Permanente Creek

Carries Maintanence Road over Permanente Creek, 0.5 Mi West Of Shoreline.

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
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT75 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

75 ft end to end. Lengths and the car 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 tee-beam bridge.

Built199729 years old
Length75.1 ft22.9 m
Daily traffic200counted 2013
Last inspectedJanuary 2024every 24 months

Location

StateCalifornia
CountySanta Clara
Location0.5 Mi West Of Shoreline
CarriesMaintanence Road
CrossesPermanente Creek
Coordinates37.42839, -122.08676

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length75.1 ft (22.9 m)
Max Span69.9 ft (21.3 m)
Deck Width20.0 ft (6.1 m)
Deck Area139.7 sq m
Main Spans1
Year Built1997

Traffic

Avg Daily Traffic200 (2013)
Truck Traffic5%
Lanes On Bridge1

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number37C0421

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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