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 

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]
Evaluation:Functionally obsolete [2]
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. ratingEvaluationDeckSuper.Sub.ADT
November 201569.4Functionally obsoleteGoodFairSatisfactory70200
November 201369.4Functionally obsoleteSatisfactoryFairSatisfactory70200
November 201169.4Functionally obsoleteSatisfactoryFairSatisfactory70545
November 200969.2Functionally obsoleteSatisfactoryFairGood71710
November 200769.2Functionally obsoleteSatisfactoryFairGood71565
November 200569.5Functionally obsoleteSatisfactoryFairGood69460
January 200469.7Functionally obsoleteSatisfactoryFairGood68040
February 200269.7Functionally obsoleteSatisfactoryFairGood68040
March 200069.7Functionally obsoleteGoodFairGood67530
March 199870.2Functionally obsoleteGoodFairVery Good63620
January 199672.0Functionally obsoleteGoodFairVery Good60820
March 199475.6Not deficientGoodFairVery Good57275
November 199189.5Not deficientGoodGoodGood30785