Structure 33 0246S · Alameda County, CA

Whipple Rd-n880 On over Up Rr Yard Spur

Carries Whipple Rd-n880 On over Up Rr Yard Spur, 04-ala-880-13.84-unc.

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 FT241 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

241 ft end to end, longest span 79 ft: about 3 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.

Built199333 years old
Length241.5 ft73.6 m
Daily traffic7,300counted 2016
Last inspectedMay 2024every 24 months

Location

StateCalifornia
CountyAlameda
Location04-ala-880-13.84-unc
CarriesWhipple Rd-n880 On
CrossesUp Rr Yard Spur
Coordinates37.60891, -122.06773

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length241.5 ft (73.6 m)
Max Span79.1 ft (24.1 m)
Deck Width41.0 ft (12.5 m)
Deck Area920 sq m
Main Spans3
Year Built1993

Traffic

Avg Daily Traffic7,300 (2016)
Truck Traffic11%
Lanes On Bridge1

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number33 0246S

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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