Share:

31ST ST over KILBOURN AVE

Map 

Coordinates:
+41.83669, -87.73647
41°50'12" N, 87°44'11" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

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]
Operating rating:82.3 tons [74.8 metric tons]
Inventory rating:49.5 tons [45.0 metric tons]
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 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
December 201592.3GoodVery GoodGoodGood-4925
December 201190.0GoodVery GoodGoodGood-6600
December 200978.4GoodExcellentGoodGood-14600
November 200774.3FairFairSatisfactorySatisfactoryFO14600
December 200574.1FairFairSatisfactorySatisfactoryFO15700
February 200474.1FairFairSatisfactorySatisfactoryFO15700
November 200274.1FairFairSatisfactorySatisfactoryFO15700
March 200174.0FairFairSatisfactorySatisfactoryFO16400
June 199975.0FairSatisfactorySatisfactorySatisfactoryFO16400
July 199773.4FairGoodSatisfactorySatisfactoryFO25400
October 199673.4FairGoodSatisfactorySatisfactoryFO25400
August 199475.2FairGoodSatisfactorySatisfactory-25400
October 199377.5FairGoodSatisfactorySatisfactory-13500
June 199277.5GoodGoodGoodGood-13500
April 199178.5GoodGoodGoodGood-13500