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 

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]
Evaluation:Functionally obsolete [2]
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. ratingEvaluationDeckSuper.Sub.ADT
April 201685.4Functionally obsoleteSatisfactorySatisfactoryGood66700
April 201485.4Functionally obsoleteSatisfactorySatisfactoryGood66700
April 201288.1Functionally obsoleteSatisfactorySatisfactoryGood39120
April 201089.1Functionally obsoleteSatisfactorySatisfactoryGood39165
April 200888.9Functionally obsoleteSatisfactorySatisfactoryGood40780
April 200689.0Functionally obsoleteSatisfactorySatisfactoryGood40375
April 200492.3Not deficientSatisfactorySatisfactoryGood38080
April 200292.4Not deficientSatisfactorySatisfactoryGood37485
April 200092.4Not deficientSatisfactorySatisfactoryGood37525
20000.0Not applicable---30560
May 199889.0Not deficientSatisfactorySatisfactoryGood61560
March 199692.8Not deficientSatisfactorySatisfactoryGood33785
March 199494.6Not deficientGoodGoodGood31980
November 199194.8Not deficientGoodGoodGood29195