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12 TH STREET over INTERSTATE 980

Map

Coordinates:
+37.80500, -122.27667
37°48'18" N, 122°16'36" 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:16.7 ft. [5.1 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]
Operating rating:59.5 tons [54.1 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
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

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
May 201667.9PoorGoodPoorGoodSD8000
May 201495.3FairSatisfactoryVery GoodGood-8000
May 201297.3FairSatisfactoryVery GoodGood-8000
June 201097.3FairSatisfactoryVery GoodGood-8000
May 200897.3FairSatisfactoryVery GoodGood-8000
May 200697.3FairSatisfactoryVery GoodGood-8000
May 200497.3FairSatisfactorySatisfactoryGood-8000
June 200280.1FairSatisfactorySatisfactoryGood-8000
June 200080.1FairSatisfactorySatisfactoryGood-8000
June 199875.0PoorPoorSatisfactoryGoodSD8000
April 199579.2GoodGoodGoodGood-8000
April 199379.2GoodGoodGoodGood-8000
October 199179.2GoodGoodGoodGood-8000