IL 43 SB (HARLEM) over RR - CN


+41.79801, -87.80167
41°47'53" N, 87°48'06" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:IL 43 SB (HARLEM) over RR - CN
Structure number:016031700000000
Old structure number:000016031704059 (from 1992 edition)
Location:0.1 M S I-55
Purpose:Carries highway over railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:73.5 ft. [22.4 m]
Total length:714.3 ft. [217.7 m]
Roadway width between curbs:42.7 ft. [13.0 m]
Deck width edge-to-edge:50.2 ft. [15.3 m]
Vertical clearance below bridge:21.0 ft. [6.4 m]
Skew angle:21°
Owner:State Highway Agency [01]
Year built:1966
Year reconstructed:1990
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]

Latest Available Inspection: October 2015 

Status:Open, no restriction [A]
Average daily traffic:44,700 [as of 2015]
Truck traffic:17% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:78.4 tons [71.3 metric tons]
Inventory rating:46.6 tons [42.4 metric tons]
Sufficiency rating:66.0

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
October 201566.0Not deficientGoodGoodSatisfactory44700
November 201366.0Not deficientGoodGoodSatisfactory45600
November 201170.4Not deficientGoodGoodSatisfactory21900
May 201070.4Not deficientGoodGoodSatisfactory21900
September 200870.4Not deficientGoodGoodSatisfactory21900
September 200669.8Not deficientGoodGoodSatisfactory23200
February 200570.6Not deficientGoodGoodSatisfactory21500
March 200370.2Not deficientGoodGoodSatisfactory22300
November 200172.1Not deficientGoodGoodGood18500
March 200069.9Not deficientGoodGoodGood22950
July 199769.9Not deficientGoodGoodGood22950
July 199470.2Not deficientGoodGoodGood18150
October 199369.4Not deficientGoodGoodGood19850
May 199268.6Not deficientVery GoodGoodGood21500
April 199171.8Not deficientVery GoodGoodGood21500