I 59/20 over 50 TH ST


+33.54552, -86.76140
33°32'44" N, 86°45'41" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I 59/20 over 50 TH ST
Structure number:011083
Location:I 59 * 50 TH ST
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:82.0 ft. [25.0 m]
Total length:152.9 ft. [46.6 m]
Roadway width between curbs:67.9 ft. [20.7 m]
Deck width edge-to-edge:70.5 ft. [21.5 m]
Vertical clearance below bridge:14.4 ft. [4.4 m]
Skew angle:32°
Owner:State Highway Agency [01]
Year built:1974
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:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: November 2015 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:70,200 [as of 2015]
Truck traffic:11% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 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:62.9 tons [57.2 metric tons]
Inventory rating:40.7 tons [37.0 metric tons]
Sufficiency rating:69.4
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,011,000

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201569.4FairGoodFairSatisfactoryFO70200
November 201369.4FairSatisfactoryFairSatisfactoryFO70200
November 201169.4FairSatisfactoryFairSatisfactoryFO70545
November 200969.2FairSatisfactoryFairGoodFO71710
November 200769.2FairSatisfactoryFairGoodFO71565
November 200569.5FairSatisfactoryFairGoodFO69460
January 200469.7FairSatisfactoryFairGoodFO68040
February 200269.7FairSatisfactoryFairGoodFO68040
March 200069.7FairGoodFairGoodFO67530
March 199870.2FairGoodFairVery GoodFO63620
January 199672.0FairGoodFairVery GoodFO60820
March 199475.6FairGoodFairVery Good-57275
November 199189.5GoodGoodGoodGood-30785