I 59/20 over AIRPORT BLVD


+33.54466, -86.75923
33°32'41" N, 86°45'33" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 59/20 over AIRPORT BLVD
Structure number:011085
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:80.1 ft. [24.4 m]
Deck width edge-to-edge:83.0 ft. [25.3 m]
Vertical clearance below bridge:16.4 ft. [5.0 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

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:70,200 [as of 2016]
Truck traffic:11% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:61.2 tons [55.6 metric tons]
Inventory rating:36.6 tons [33.3 metric tons]
Sufficiency rating:89.3
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,994,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
February 201689.3FairGoodSatisfactorySatisfactory-70200
February 201489.3FairSatisfactorySatisfactorySatisfactory-70200
February 201277.6FairSatisfactoryFairSatisfactory-67125
March 201089.3FairSatisfactorySatisfactoryGood-69890
March 200889.3FairSatisfactoryGoodGood-69750
March 200689.7FairSatisfactoryGoodGood-66010
March 200489.8FairSatisfactoryGoodGood-64520
March 200289.8FairSatisfactoryGoodGood-64520
April 200089.5GoodGoodGoodGood-67750
March 199889.9GoodGoodGoodGood-63620
March 199691.5GoodGoodVery GoodGood-58250
March 199491.7GoodGoodVery GoodGood-55940
November 199191.8FairSatisfactoryGoodGood-54230

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.1,92501,92500
Steel Protective Coatingsq. ft.19,3750019,3750
Reinforced Concrete Decksq. ft.14,359014,35900
Reinforced Concrete Columneach88000
Reinforced Concrete Abutmentlinear ft.2312161500
Reinforced Concrete Pier Caplinear ft.163163000
Compression Jointlinear ft.3410269072
Movable Bearingeach3300330
Fixed Bearingeach3300330
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.350350000