I- 90,94 RYAN ELEV over 16TH TO 18TH STS


+41.85758, -87.64437
41°51'27" N, 87°38'40" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I- 90,94 RYAN ELEV over 16TH TO 18TH STS
Structure number:016111100000000
Old structure number:000016111126271 (from 1992 edition)
Location:1 M N I-55
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:104.7 ft. [31.9 m]
Total length:942.3 ft. [287.2 m]
Roadway width between curbs:126.0 ft. [38.4 m]
Deck width edge-to-edge:141.1 ft. [43.0 m]
Owner:State Highway Agency [01]
Year built:1962
Year reconstructed:1989
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:11
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: July 2014 

Status:Open, no restriction [A]
Average daily traffic:262,900 [as of 2014]
Truck traffic:6% of total traffic
Deck condition:Fair [5 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:Basically intolerable requiring high priority of replacement [2]
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:57.4 tons [52.2 metric tons]
Inventory rating:36.7 tons [33.4 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:61.0
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$3,995,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
July 201461.0Functionally obsoleteFairSatisfactoryGood262900
August 201161.0Functionally obsoleteFairSatisfactoryGood243000
August 200961.0Functionally obsoleteFairSatisfactoryGood238400
January 200861.0Functionally obsoleteFairSatisfactoryGood239000
January 200662.0Functionally obsoleteSatisfactorySatisfactoryGood289500
March 200461.0Functionally obsoleteFairGoodGood294900
April 200279.0Functionally obsoleteSatisfactorySatisfactoryGood285700
May 200079.0Functionally obsoleteSatisfactorySatisfactoryGood169500
May 199879.0Functionally obsoleteGoodSatisfactoryVery Good286400
May 199679.0Not deficientGoodGoodVery Good305700
May 199479.0Not deficientGoodGoodVery Good231500
October 199379.0Not deficientGoodGoodVery Good252400
July 199279.0Not deficientGoodGoodVery Good239000
February 199179.0Not deficientGoodGoodVery Good239000