31ST ST over RR - BNSF & BRC


+41.83667, -87.73902
41°50'12" N, 87°44'20" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:31ST ST over RR - BNSF & BRC
Structure number:016087100000000
Old structure number:000016087104484 (from 1992 edition)
Location:0.3 M E IL 50
Purpose:Carries highway over railroad
Route classification:Minor Arterial (Urban) [16]
Length of largest span:86.0 ft. [26.2 m]
Total length:495.1 ft. [150.9 m]
Roadway width between curbs:31.5 ft. [9.6 m]
Deck width edge-to-edge:47.6 ft. [14.5 m]
Vertical clearance below bridge:19.7 ft. [6.0 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+Mod / HS 20+Mod [6]
Number of main spans:7
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:Basically intolerable requiring high priority of replacement [2]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Operating rating:75.6 tons [68.7 metric tons]
Inventory rating:45.2 tons [41.1 metric tons]
Sufficiency rating:83.2
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$7,089,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
December 201583.2GoodVery GoodGoodGood-4925
December 201182.9GoodVery GoodGoodGood-6600
December 200974.2GoodExcellentGoodGood-14600
November 200757.4PoorPoorFairFairSD14600
December 200557.1PoorPoorFairFairSD15700
February 200470.9FairFairSatisfactorySatisfactoryFO15700
November 200270.9FairFairSatisfactorySatisfactoryFO15700
March 200170.8FairFairSatisfactorySatisfactoryFO16400
July 199970.8FairFairSatisfactorySatisfactoryFO16400
July 199769.0FairFairSatisfactorySatisfactoryFO25400
October 199669.0FairFairSatisfactorySatisfactoryFO25400
August 199470.9FairFairSatisfactorySatisfactoryFO25400
June 199274.5FairSatisfactoryGoodSatisfactoryFO12600
April 199177.6FairSatisfactoryGoodSatisfactory-12600