I-90 WB over SR 312/CHICAGO ST


+41.62901, -87.49770
41°37'44" N, 87°29'52" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-90 WB over SR 312/CHICAGO ST
Structure number:046120
Location:01.31 E US 41
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Tolls:Yes, on toll road [2]
Length of largest span:133.9 ft. [40.8 m]
Total length:336.0 ft. [102.4 m]
Roadway width between curbs:33.1 ft. [10.1 m]
Deck width edge-to-edge:35.1 ft. [10.7 m]
Vertical clearance below bridge:23.0 ft. [7.0 m]
Skew angle:37°
Owner:State Toll Authority [31]
Year built:1956
Year reconstructed:1985
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:3
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: July 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:18,425 [as of 2015]
Truck traffic:11% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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 desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:76.8

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2017FairFairSatisfactoryFair1842576.8
July 2015FairSatisfactorySatisfactoryFair1842577.8
August 2013FairSatisfactoryFairFair1814677.8
July 2011FairSatisfactoryFairFair1814677.8
July 2009FairSatisfactoryFairFair1814677.8
July 2007FairSatisfactorySatisfactorySatisfactory1814689.2
July 2005FairSatisfactorySatisfactorySatisfactory1814690.1
August 2003FairSatisfactorySatisfactorySatisfactory1779090.1
July 2001FairFairSatisfactoryFair1779077.9
September 1999FairSatisfactoryGoodGood1433589.5
September 1997GoodGoodGoodGood1433589.5
October 1995GoodGoodGoodGood1120090.1
September 1993GoodGoodVery GoodGood740090.4
October 1991GoodGoodVery GoodGood740092.4

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,5601,5303000
Steel Protective Coatingsq. ft.24,70023,95974100
Reinforced Concrete Decksq. ft.10,92010,8328800
Wearing Surfacessq. ft.10,2969,746530200
Reinforced Concrete Columneach127500
Reinforced Concrete Abutmentlinear ft.88443950
Reinforced Concrete Pier Caplinear ft.88753100
Strip Seal Jointlinear ft.44222200
Compression Jointlinear ft.131000131
Movable Bearingeach1501500
Fixed Bearingeach1501500
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.6243881873910