Structure 33 0137 · Alameda County, CA

16th Avenue over I 880 E 12th ST Bartd Rr

Carries 16th Avenue over I 880 E 12th ST Bartd Rr, 04-ala-880-29.69-oak.

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 FT1,138 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

1,138 ft end to end, longest span 170 ft: about 3.2 football fields. 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.

Built199729 years old
Length1138.5 ft347 m
Daily traffic5,000counted 2005
Last inspectedFebruary 2025every 24 months

Location

StateCalifornia
CountyAlameda
Location04-ala-880-29.69-oak
Carries16th Avenue
CrossesI 880 E 12th ST Bartd Rr
Coordinates37.78475, -122.24310

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length1138.5 ft (347 m)
Max Span169.9 ft (51.8 m)
Deck Width39.0 ft (11.9 m)
Deck Area4129.3 sq m
Main Spans10
Year Built1997

Traffic

Avg Daily Traffic5,000 (2005)
Truck Traffic1%
Lanes On Bridge2
Lanes Under Bridge10

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number33 0137

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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