59TH ST over I- 90,94 RYAN & CTA


+41.78710, -87.63150
41°47'14" N, 87°37'53" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:59TH ST over I- 90,94 RYAN & CTA
Structure number:016115000000000
Old structure number:000016115026286 (from 1992 edition)
Location:5 M S I-55
Purpose:Carries highway overpass over highway and railroad
Route classification:Collector (Urban) [17]
Length of largest span:69.9 ft. [21.3 m]
Total length:339.9 ft. [103.6 m]
Roadway width between curbs:69.9 ft. [21.3 m]
Deck width edge-to-edge:85.0 ft. [25.9 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Owner:State Highway Agency [01]
Year built:1961
Year reconstructed:2004
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:5
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: October 2014 

Status:Open, no restriction [A]
Average daily traffic:10,600 [as of 2014]
Truck traffic:13% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Satisfactory [6 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:79.1 tons [71.9 metric tons]
Inventory rating:47.4 tons [43.1 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:86.9
Recommended work:Widening of existing bridge with deck rehabilitation or replacement. [34]
Estimated cost of work:$2,738,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
October 201486.9Functionally obsoleteGoodVery GoodSatisfactory10600
October 201288.8Not deficientGoodVery GoodGood11700
October 201089.4Not deficientGoodVery GoodGood11700
January 200989.4Not deficientGoodVery GoodGood12200
January 200693.1Functionally obsoleteVery GoodVery GoodGood18600
August 200478.9Structurally deficientPoorFairSatisfactory18600
October 200278.9Structurally deficientPoorFairSatisfactory18600
December 200079.0Structurally deficientPoorFairSatisfactory16400
December 199979.0Structurally deficientPoorFairSatisfactory16400
March 199879.0Structurally deficientPoorFairSatisfactory16400
August 199678.8Structurally deficientPoorFairSatisfactory19000
June 199490.4Structurally deficientPoorGoodSatisfactory19000
November 199379.4Structurally deficientPoorFairSatisfactory16400
July 199290.6Structurally deficientPoorGoodSatisfactory16400
February 199190.6Structurally deficientPoorGoodSatisfactory16400