IL 43 NB (HARLEM) over RR - CN


+41.79790, -87.80202
41°47'52" N, 87°48'07" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IL 43 NB (HARLEM) over RR - CN
Structure number:016031800000000
Old structure number:000016031804060 (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:74.2 ft. [22.6 m]
Total length:217.9 ft. [66.4 m]
Roadway width between curbs:48.6 ft. [14.8 m]
Deck width edge-to-edge:55.4 ft. [16.9 m]
Vertical clearance below bridge:21.0 ft. [6.4 m]
Owner:State Highway Agency [01]
Year built:1931
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:4
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

Good/Fair/Poor Condition:Good
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:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:96.9 tons [88.1 metric tons]
Inventory rating:58.4 tons [53.1 metric tons]
Sufficiency rating:65.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$2,786,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
October 201565.0GoodGoodGoodGoodFO44700
November 201365.0GoodGoodGoodGoodFO45600
November 201168.1FairGoodSatisfactoryGoodFO21900
January 201068.1FairGoodSatisfactoryGoodFO21900
January 200867.2FairGoodSatisfactoryGoodFO23750
January 200667.4FairGoodSatisfactoryGoodFO23200
April 200468.3GoodGoodGoodGoodFO21500
November 200169.8GoodGoodGoodGoodFO18500
March 200067.6GoodGoodGoodGoodFO22950
July 199767.6GoodGoodVery GoodGoodFO22950
July 199468.0GoodGoodVery GoodGood-18150
October 199367.1GoodGoodVery GoodGood-19850
May 199266.3GoodVery GoodVery GoodVery Good-21500
April 199164.8PoorPoorVery GoodVery Good-21500

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.1,3081,308000
Reinforced Concrete Decksq. ft.12,39912,399000
Reinforced Concrete Columneach1717000
Reinforced Concrete Pier Walllinear ft.189187200
Reinforced Concrete Abutmentlinear ft.111111000
Reinforced Concrete Pier Caplinear ft.300294600
Strip Seal Jointlinear ft.128012800
Elastomeric Bearingeach36021150
Fixed Bearingeach90900
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.436043600