I-59/20 over AL 79


+33.54799, -86.78022
33°32'53" N, 86°46'49" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I-59/20 over AL 79
Structure number:010863
Location:I 59 * AL 79
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:90.9 ft. [27.7 m]
Total length:168.0 ft. [51.2 m]
Roadway width between curbs:67.9 ft. [20.7 m]
Deck width edge-to-edge:69.9 ft. [21.3 m]
Vertical clearance below bridge:16.4 ft. [5.0 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 

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:Better than present minimum criteria [7]
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:83.3
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,243,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
February 201683.3Not deficientSatisfactorySatisfactorySatisfactory76895
February 201482.3Not deficientSatisfactorySatisfactorySatisfactory76895
February 201282.4Not deficientSatisfactorySatisfactorySatisfactory76095
February 201082.3Not deficientGoodSatisfactoryGood77355
February 200882.3Not deficientGoodSatisfactoryGood77200
February 200683.2Not deficientGoodGoodGood77910
March 200478.1Not deficientGoodGoodGood155120
March 200280.0Not deficientGoodGoodGood155120
March 200084.1Not deficientGoodGoodGood67530
March 199883.6Not deficientGoodGoodGood72875
January 199685.1Not deficientGoodSatisfactoryGood72190
March 199484.6Not deficientGoodSatisfactoryGood66100
November 199185.6Not deficientGoodGoodVery Good66155