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

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Reinforced Concrete Closed Web/Box Girderlinear ft.176017600
Reinforced Concrete Top Flangesq. ft.4,1504,150000
Concrete Protective Coatingsq. ft.3,5003,500000
Reinforced Concrete Columneach66000
Reinforced Concrete Pier Walllinear ft.3838000
Reinforced Concrete Abutmentlinear ft.8080000
Reinforced Concrete Pileeach11000
Pourable Jointlinear ft.118118000
Compression Jointlinear ft.3939000
Movable Bearingeach1818000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.8888000
Other Material Bridge Raillinear ft.2001420580