I-90 SKYWAY over 71ST ST


+41.76708, -87.60972
41°46'01" N, 87°36'35" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-90 SKYWAY over 71ST ST
Structure number:016630200000000
Old structure number:000016630203773 (from 1992 edition)
Location:0.1 M E COTTAGE P7C
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Tolls:Yes, on toll road [2]
Length of largest span:97.4 ft. [29.7 m]
Total length:106.0 ft. [32.3 m]
Roadway width between curbs:112.2 ft. [34.2 m]
Deck width edge-to-edge:118.4 ft. [36.1 m]
Skew angle:44°
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:Good [7 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:88.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2017FairSatisfactoryGoodSatisfactory3400088.9
August 2015FairSatisfactoryGoodSatisfactory3400088.9
September 2013FairGoodGoodSatisfactory3400088.9
September 2011FairGoodGoodSatisfactory4210085.9
October 2009FairGoodGoodSatisfactory4790084.5
September 2008FairGoodGoodSatisfactory4790084.5
November 2007FairGoodGoodSatisfactory4770084.6
November 2005FairGoodGoodSatisfactory4770084.6
October 2004FairGoodGoodSatisfactory4770084.6
November 2003FairGoodGoodSatisfactory4770084.6
November 2001FairGoodSatisfactorySatisfactory5130083.7
August 2000FairGoodSatisfactorySatisfactory5130083.7
September 1999FairGoodSatisfactorySatisfactory4510085.2
September 1997FairVery GoodSatisfactoryGood1290092.9
August 1995FairVery GoodSatisfactoryGood1290094.1
August 1994FairVery GoodSatisfactoryGood1290092.0
November 1993FairFairFairFair1290081.6
May 1992FairFairFairFair1290081.6
October 1990FairFairFairFair1290081.6

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.636636000
Reinforced Concrete Decksq. ft.13,11511,9671,118300
Reinforced Concrete Abutmentlinear ft.3293071840
Reinforced Concrete Pier Caplinear ft.36131831120
Strip Seal Jointlinear ft.165848100
Compression Jointlinear ft.104025079
Elastomeric Bearingeach1800180
Fixed Bearingeach1801800
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.41310330820