Structure 37C0291 · Santa Clara County, CA

Bollinger RD over Calabazas Creek

Carries Bollinger RD over Calabazas Creek, 0.2 Mi E Sunnyvale RD.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT67 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 67 ft across. 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, so those are drawn as typical for a culvert.

Built200818 years old
Length67.3 ft20.5 m
Daily traffic24,000counted 2004
Last inspectedMarch 2024every 48 months

Location

StateCalifornia
CountySanta Clara
Location0.2 Mi E Sunnyvale RD
CarriesBollinger RD
CrossesCalabazas Creek
Coordinates37.30983, -122.01984

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length67.3 ft (20.5 m)
Max Span24.3 ft (7.4 m)
Deck Area420.2 sq m
Main Spans1
Year Built2008

Traffic

Avg Daily Traffic24,000 (2004)
Truck Traffic2%
Lanes On Bridge4

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number37C0291

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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