Structure 37C0009 · Santa Clara County, CA

Leavesley RD over Marcella Ditch

Carries Leavesley RD over Marcella Ditch, E/o Marcella AVE.

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT44 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

44 ft end to end, longest span 21 ft. 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 slab bridge.

Built194878 years old
Length44.0 ft13.4 m
Daily traffic7,800counted 2014
Last inspectedNovember 2022every 48 months

Location

StateCalifornia
CountySanta Clara
LocationE/o Marcella AVE
CarriesLeavesley RD
CrossesMarcella Ditch
Coordinates37.02799, -121.55186

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length44.0 ft (13.4 m)
Max Span21.0 ft (6.4 m)
Deck Width57.4 ft (17.5 m)
Deck Area234.5 sq m
Main Spans2
Year Built1948

Traffic

Avg Daily Traffic7,800 (2014)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2022
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number37C0009

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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