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12 TH STREET over INTERSTATE 980

Map

Coordinates:
+37.80564, -122.27918
37°48'20" N, 122°16'45" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:12 TH STREET over INTERSTATE 980
Structure number:33 0480
Location:04-ALA-980-0.60-OAK
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:124.0 ft. [37.8 m]
Total length:314.0 ft. [95.7 m]
Roadway width between curbs:54.1 ft. [16.5 m]
Deck width edge-to-edge:68.2 ft. [20.8 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1981
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:3
Main spans material:Prestressed concrete continuous [6]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: May 2016

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:8,000 [as of 1998]
Truck traffic:2% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Equal to present minimum criteria [6]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:67.9
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,351,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2016PoorGoodPoorGood800067.9
May 2014FairSatisfactoryVery GoodGood800095.3
May 2012FairSatisfactoryVery GoodGood800097.3
June 2010FairSatisfactoryVery GoodGood800097.3
May 2008FairSatisfactoryVery GoodGood800097.3
May 2006FairSatisfactoryVery GoodGood800097.3
May 2004FairSatisfactorySatisfactoryGood800097.3
June 2002FairSatisfactorySatisfactoryGood800080.1
June 2000FairSatisfactorySatisfactoryGood800080.1
June 1998PoorPoorSatisfactoryGood800075.0
April 1995GoodGoodGoodGood800079.2
April 1993GoodGoodGoodGood800079.2
October 1991GoodGoodGoodGood800079.2

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Closed Web/Box Girderlinear ft.9600960
Deck
Reinforced Concrete Top Flangesq. ft.2,0001,50050000
Substructure
Reinforced Concrete Columneach44000
Reinforced Concrete Abutmentlinear ft.4237500
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.100010000