I 59/20 over AIRPORT BLVD


+33.54444, -86.75933
33°32'40" N, 86°45'34" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I 59/20 over AIRPORT BLVD
Structure number:011086
Old structure number:00000I59370286B (from 1992 edition)
Location:I 59 * AIRPORT BLVD
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:175.5 ft. [53.5 m]
Roadway width between curbs:67.9 ft. [20.7 m]
Deck width edge-to-edge:70.9 ft. [21.6 m]
Vertical clearance below bridge:20.3 ft. [6.2 m]
Skew angle:
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: February 2016 

Status:Open, no restriction [A]
Average daily traffic:70,200 [as of 2016]
Truck traffic:11% of total traffic
Deck condition:Satisfactory [6 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:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:62.6 tons [56.9 metric tons]
Inventory rating:37.4 tons [34.0 metric tons]
Sufficiency rating:88.3
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,416,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
February 201688.3Not deficientSatisfactorySatisfactoryGood70200
February 201488.3Not deficientSatisfactorySatisfactoryGood70200
February 201288.6Not deficientSatisfactorySatisfactoryGood67125
March 201089.3Not deficientSatisfactorySatisfactoryGood69890
March 200889.3Not deficientSatisfactorySatisfactoryGood69750
March 200689.7Not deficientGoodGoodGood66010
March 200489.8Not deficientGoodGoodGood64520
March 200289.8Not deficientGoodGoodGood64520
April 200089.5Not deficientGoodGoodGood67750
March 199889.9Not deficientGoodVery GoodGood63620
March 199691.5Not deficientGoodVery GoodGood58250
March 199491.7Not deficientGoodVery GoodGood55940
November 199192.1Not deficientGoodGoodVery Good51250