INTERSTATE 580 over ST RTE 24-I 980


+37.82417, -122.26806
37°49'27" N, 122°16'05" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:INTERSTATE 580 over ST RTE 24-I 980
Structure number:33 0298
Purpose:Carries highway overpass over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:99.1 ft. [30.2 m]
Total length:288.1 ft. [87.8 m]
Roadway width between curbs:122.1 ft. [37.2 m]
Deck width edge-to-edge:127.0 ft. [38.7 m]
Vertical clearance above deck:16.4 ft. [5.0 m]
Vertical clearance below bridge:15.1 ft. [4.6 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1961
Year reconstructed:1969
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Concrete continuous [2]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: August 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:174,000 [as of 2009]
Truck traffic:2% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Equal to present minimum criteria [6]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:78.4 tons [71.3 metric tons]
Inventory rating:47.1 tons [42.8 metric tons]
Sufficiency rating:62.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$6,961,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201662.0FairGoodFairGoodFO174000
August 201473.0FairVery GoodSatisfactoryVery GoodFO174000
September 201273.0GoodGoodGoodGoodFO174000
March 201175.0GoodGoodGoodGoodFO394000
August 200875.0GoodGoodGoodGoodFO205000
August 200675.0FairGoodSatisfactoryGoodFO205000
December 200475.0FairGoodSatisfactoryGoodFO205000
October 200276.0FairGoodSatisfactoryGoodFO197000
October 200071.0PoorSeriousSatisfactoryGoodSD192500
October 199871.0PoorSeriousGoodGoodSD192500
December 199476.0GoodGoodGoodGoodFO283700
March 199376.0GoodGoodGoodGoodFO250000
November 198976.0GoodGoodGoodGoodFO250000