I59 over I20 RAMP A*B


+33.54762, -86.74947
33°32'51" N, 86°44'58" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I59 over I20 RAMP A*B
Structure number:011090
Old structure number:00000I59370293B (from 1992 edition)
Location:I59 * I20 INTERCHANGE
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:85.0 ft. [25.9 m]
Total length:292.0 ft. [89.0 m]
Roadway width between curbs:50.9 ft. [15.5 m]
Deck width edge-to-edge:54.1 ft. [16.5 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:28°
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:4
Main spans material:Steel continuous [4]
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: April 2016 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:66,700 [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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:56.9 tons [51.7 metric tons]
Inventory rating:41.4 tons [37.6 metric tons]
Sufficiency rating:85.4
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,948,000

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
April 201685.4FairSatisfactorySatisfactoryGoodFO66700
April 201485.4FairSatisfactorySatisfactoryGoodFO66700
April 201288.1FairSatisfactorySatisfactoryGoodFO39120
April 201089.1FairSatisfactorySatisfactoryGoodFO39165
April 200888.9FairSatisfactorySatisfactoryGoodFO40780
April 200689.0FairSatisfactorySatisfactoryGoodFO40375
April 200492.3FairSatisfactorySatisfactoryGood-38080
April 200292.4FairSatisfactorySatisfactoryGood-37485
April 200092.4FairSatisfactorySatisfactoryGood-37525
May 199889.0FairSatisfactorySatisfactoryGood-61560
March 199692.8FairSatisfactorySatisfactoryGood-33785
March 199494.6GoodGoodGoodGood-31980
November 199194.8GoodGoodGoodGood-29195