I 59/20 over 50 TH ST


+33.54556, -86.76167
33°32'44" N, 86°45'42" 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:13.1 ft. [4.0 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 2017

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]
Sufficiency rating:69.4
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$2,989,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2017FairGoodFairSatisfactory7020069.4
November 2015FairGoodFairSatisfactory7020069.4
November 2013FairSatisfactoryFairSatisfactory7020069.4
November 2011FairSatisfactoryFairSatisfactory7054569.4
November 2009FairSatisfactoryFairGood7171069.2
November 2007FairSatisfactoryFairGood7156569.2
November 2005FairSatisfactoryFairGood6946069.5
January 2004FairSatisfactoryFairGood6804069.7
February 2002FairSatisfactoryFairGood6804069.7
March 2000FairGoodFairGood6753069.7
March 1998FairGoodFairVery Good6362070.2
January 1996FairGoodFairVery Good6082072.0
March 1994FairGoodFairVery Good5727575.6
November 1991GoodGoodGoodGood3078589.5

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,37601,1760200
Steel Protective Coatingsq. ft.13,9930013,9930
Reinforced Concrete Decksq. ft.10,77910,779000
Reinforced Concrete Columneach1010000
Reinforced Concrete Abutmentlinear ft.177017700
Reinforced Concrete Pier Caplinear ft.136013420
Compression Jointlinear ft.28201780104
Movable Bearingeach27011124
Fixed Bearingeach2702700
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.306306000