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I-90 SKYWAY over COTTAGE GROVE AVE

Map

Coordinates:
+41.76408, -87.60552
41°45'51" N, 87°36'20" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-90 SKYWAY over COTTAGE GROVE AVE
Structure number:016630300000000
Old structure number:000016630303774 (from 1992 edition)
Location:0.1 M SE 71ST P7C
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Tolls:Yes, on toll road [2]
Length of largest span:121.4 ft. [37.0 m]
Total length:129.9 ft. [39.6 m]
Roadway width between curbs:99.7 ft. [30.4 m]
Deck width edge-to-edge:106.0 ft. [32.3 m]
Skew angle:45°
Owner:City or Municipal Highway Agency [04]
Year built:1958
Year reconstructed:1994
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]

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:Satisfactory [6 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:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:90.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2017FairSatisfactorySatisfactorySatisfactory3400090.0
August 2015FairSatisfactorySatisfactorySatisfactory3400090.0
September 2013FairGoodSatisfactorySatisfactory3400090.0
September 2011FairGoodSatisfactorySatisfactory4210083.7
September 2010FairGoodSatisfactorySatisfactory4790082.2
September 2008FairGoodSatisfactorySatisfactory4790082.2
November 2007FairGoodSatisfactorySatisfactory4770082.3
November 2005FairGoodSatisfactorySatisfactory4770086.8
November 2004FairSatisfactorySatisfactorySatisfactory4770082.3
November 2003FairGoodSatisfactorySatisfactory4770082.3
November 2001FairGoodSatisfactoryGood5130081.4
August 2000FairGoodSatisfactoryGood5130081.4
October 1999FairGoodSatisfactoryGood4510082.9
September 1997FairVery GoodSatisfactoryGood1290090.8
August 1995FairVery GoodSatisfactoryGood1290093.0
August 1994FairVery GoodSatisfactoryGood1290093.0
November 1993FairFairFairFair1290080.5
May 1992FairFairFairFair1290080.5
October 1990FairFairFairSatisfactory1290080.5

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.780779100
Deck
Reinforced Concrete Decksq. ft.13,35012,0011,335122
Substructure
Reinforced Concrete Abutmentlinear ft.300293520
Reinforced Concrete Pier Caplinear ft.3042794210
Joints
Strip Seal Jointlinear ft.147558183
Compression Jointlinear ft.127127000
Bearings
Elastomeric Bearingeach1400140
Fixed Bearingeach1401400
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.50528621900