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31ST ST over KILBOURN AVE

Map

Coordinates:
+41.83676, -87.73690
41°50'12" N, 87°44'13" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:31ST ST over KILBOURN AVE
Structure number:016087200000000
Old structure number:000016087204485 (from 1992 edition)
Location:0.5 M E IL 50
Purpose:Carries highway over highway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:66.6 ft. [20.3 m]
Total length:175.9 ft. [53.6 m]
Roadway width between curbs:31.5 ft. [9.6 m]
Deck width edge-to-edge:47.6 ft. [14.5 m]
Owner:State Highway Agency [01]
Year built:1957
Year reconstructed:2009
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:3
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: December 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:4,925 [as of 2014]
Truck traffic:18% of total traffic
Deck condition:Very Good [8 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:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:92.3
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$2,520,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
December 2015GoodVery GoodGoodGood492592.3
December 2011GoodVery GoodGoodGood660090.0
December 2009GoodExcellentGoodGood1460078.4
November 2007FairFairSatisfactorySatisfactory1460074.3
December 2005FairFairSatisfactorySatisfactory1570074.1
February 2004FairFairSatisfactorySatisfactory1570074.1
November 2002FairFairSatisfactorySatisfactory1570074.1
March 2001FairFairSatisfactorySatisfactory1640074.0
June 1999FairSatisfactorySatisfactorySatisfactory1640075.0
July 1997FairGoodSatisfactorySatisfactory2540073.4
October 1996FairGoodSatisfactorySatisfactory2540073.4
August 1994FairGoodSatisfactorySatisfactory2540075.2
October 1993FairGoodSatisfactorySatisfactory1350077.5
June 1992GoodGoodGoodGood1350077.5
April 1991GoodGoodGoodGood1350078.5