Structure 37 0668 · Santa Clara County, CA

Tully Road over US Highway 101

Carries Tully Road over US Highway 101, 04-scl-101-33.03-sjs.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT312 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

312 ft end to end, longest span 160 ft: about 4 semi-trucks nose to tail. 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.

Built201214 years old
Length312.0 ft95.1 m
Daily traffic29,000counted 2005
Last inspectedJanuary 2023every 24 months

Location

StateCalifornia
CountySanta Clara
Location04-scl-101-33.03-sjs
CarriesTully Road
CrossesUS Highway 101
Coordinates37.31799, -121.83191

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length312.0 ft (95.1 m)
Max Span160.1 ft (48.8 m)
Deck Width118.1 ft (36 m)
Deck Area3423.6 sq m
Main Spans2
Year Built2012

Traffic

Avg Daily Traffic29,000 (2005)
Truck Traffic8%
Lanes On Bridge7
Lanes Under Bridge11

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number37 0668

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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