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:011082
Location:I 59 * 50 TH ST
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:8.2 ft. [2.5 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:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
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:81.6
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 2017FairGoodSatisfactoryGood7020081.6
November 2015FairGoodSatisfactoryGood7020081.6
November 2013FairSatisfactorySatisfactoryGood7020081.6
November 2011FairSatisfactoryFairGood7054569.4
November 2009FairSatisfactorySatisfactoryGood7171081.5
November 2007FairSatisfactorySatisfactoryGood7156581.5
November 2005FairSatisfactorySatisfactoryGood6946081.7
January 2004FairSatisfactorySatisfactoryGood6804081.9
February 2002FairSatisfactorySatisfactoryGood6804081.9
March 2000GoodGoodGoodGood6753081.9
March 1998GoodGoodVery GoodVery Good6362082.3
January 1996GoodGoodVery GoodVery Good6082083.9
March 1994GoodGoodVery GoodVery Good5727587.4
November 1991GoodVery GoodVery GoodVery Good3078589.5

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,37601,304720
Steel Protective Coatingsq. ft.13,99300013,993
Reinforced Concrete Decksq. ft.11,46811,468000
Reinforced Concrete Columneach1010000
Reinforced Concrete Abutmentlinear ft.174001740
Reinforced Concrete Pier Caplinear ft.1361200160
Compression Jointlinear ft.300751160109
Movable Bearingeach27010143
Fixed Bearingeach2702700
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.306306000