I-59/20 over AL 79


+33.54791, -86.77997
33°32'52" N, 86°46'48" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-59/20 over AL 79
Structure number:010862
Location:I 59 * AL 79
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:89.9 ft. [27.4 m]
Total length:168.0 ft. [51.2 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:17.1 ft. [5.2 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1973
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:2
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Other [9]

Latest Available Inspection: February 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:76,895 [as of 2016]
Truck traffic:10% of total traffic
Deck condition:Satisfactory [6 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:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:44.2 tons [40.2 metric tons]
Inventory rating:32.1 tons [29.2 metric tons]
Sufficiency rating:89.1
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,270,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
February 201689.1FairSatisfactorySatisfactorySatisfactory-76895
February 201477.1FairGoodFairSatisfactory-76895
February 201277.1FairGoodFairSatisfactory-76095
February 201077.1FairGoodFairGood-77355
February 200877.1FairGoodFairGood-77200
February 200678.1FairGoodFairGood-77910
March 200480.1FairGoodFairGood-77560
March 200282.0FairGoodFairGood-77560
March 200080.0FairSatisfactoryFairGood-67530
March 199880.0FairGoodFairGood-72875
January 199680.0FairGoodFairGood-72190
March 199479.0FairGoodFairGood-66100
November 199191.0FairGoodSatisfactoryGood-66155

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.1,6801,6506240
Steel Protective Coatingsq. ft.15,06915,069000
Reinforced Concrete Decksq. ft.11,8619,3352,432940
Wearing Surfacessq. ft.9,4089,408000
Reinforced Concrete Columneach43100
Reinforced Concrete Abutmentlinear ft.249238461
Reinforced Concrete Pier Caplinear ft.6867010
Pourable Jointlinear ft.141000141
Movable Bearingeach2004124
Fixed Bearingeach109001
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.3363191700