I-90 SKYWAY over 85TH ST


+41.74098, -87.57339
41°44'28" N, 87°34'24" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-90 SKYWAY over 85TH ST
Structure number:016630700000000
Old structure number:000016630703782 (from 1992 edition)
Location:0.09 SW CHGO AVE P7C
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Tolls:Yes, on toll road [2]
Length of largest span:95.5 ft. [29.1 m]
Total length:99.7 ft. [30.4 m]
Roadway width between curbs:99.1 ft. [30.2 m]
Deck width edge-to-edge:106.0 ft. [32.3 m]
Skew angle:43°
Owner:City or Municipal Highway Agency [04]
Year built:1958
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span 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: August 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:34,000 [as of 2016]
Truck traffic:13% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:83.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2017FairVery GoodSatisfactorySatisfactory3400083.0
August 2015FairVery GoodSatisfactorySatisfactory3400083.0
September 2013FairVery GoodSatisfactorySatisfactory3400083.0
September 2011FairVery GoodSatisfactorySatisfactory4210083.0
October 2010FairVery GoodSatisfactorySatisfactory4790083.0
September 2008FairVery GoodSatisfactorySatisfactory4790083.0
November 2007FairExcellentSatisfactorySatisfactory4770083.0
November 2005FairSatisfactorySatisfactoryFair4770072.0
October 2004FairSatisfactorySatisfactoryFair4770072.0
November 2003FairSatisfactoryGoodFair4770072.0
October 2001FairSatisfactorySatisfactoryFair5130072.0
September 2000FairSatisfactorySatisfactoryFair5130072.0
October 1999FairSatisfactorySatisfactoryFair4510072.0
September 1997FairSatisfactorySatisfactoryFair1710074.6
August 1995FairSatisfactorySatisfactoryFair1710074.4
August 1994FairSatisfactorySatisfactoryFair1710074.4
November 1993FairSatisfactorySatisfactoryFair1710074.4
May 1992FairFairFairFair1710073.3
October 1990FairFairFairFair1710073.3

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.59848810550
Reinforced Concrete Decksq. ft.10,62010,01960100
Reinforced Concrete Abutmentlinear ft.2902561330
Reinforced Concrete Pier Caplinear ft.3012381620
Strip Seal Jointlinear ft.14427832410
Pourable Jointlinear ft.101101000
Elastomeric Bearingeach1615010
Fixed Bearingeach1601600
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.4013713000