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 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:260,000 [as of 2016]
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]
Sufficiency rating:61.0
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$3,995,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201661.0FairFairSatisfactoryGoodFO260000
July 201461.0FairFairSatisfactoryGoodFO262900
August 201161.0FairFairSatisfactoryGoodFO243000
August 200961.0FairFairSatisfactoryGoodFO238400
January 200861.0FairFairSatisfactoryGoodFO239000
January 200662.0FairSatisfactorySatisfactoryGoodFO289500
March 200461.0FairFairGoodGoodFO294900
April 200279.0FairSatisfactorySatisfactoryGoodFO285700
May 200079.0FairSatisfactorySatisfactoryGoodFO169500
May 199879.0FairGoodSatisfactoryVery GoodFO286400
May 199679.0GoodGoodGoodVery Good-305700
May 199479.0GoodGoodGoodVery Good-231500
October 199379.0GoodGoodGoodVery Good-252400
July 199279.0GoodGoodGoodVery Good-239000
February 199179.0GoodGoodGoodVery Good-239000