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