I-90 SKYWAY over AVE "M"


+41.71462, -87.53726
41°42'53" N, 87°32'14" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-90 SKYWAY over AVE "M"
Structure number:016642200000000
Old structure number:000016642205766 (from 1992 edition)
Location:0.11 M NW 100TH
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Tolls:Yes, on toll road [2]
Length of largest span:135.5 ft. [41.3 m]
Total length:375.0 ft. [114.3 m]
Roadway width between curbs:77.4 ft. [23.6 m]
Deck width edge-to-edge:83.0 ft. [25.3 m]
Owner:City or Municipal Highway Agency [04]
Year built:1958
Year reconstructed:2003
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Steel continuous [4]
Main spans design:Truss - Deck [09]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: September 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:Good [7 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Good [7 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:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:72.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$2,259,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017FairGoodFairGood3400072.0
September 2015FairGoodFairGood3400072.0
September 2013FairGoodFairGood3400072.0
September 2011FairVery GoodFairGood4210067.0
September 2010FairVery GoodFairGood4790067.0
September 2008FairVery GoodFairGood4790067.0
September 2007FairVery GoodFairGood4770067.0
November 2005FairExcellentFairGood4770067.0
November 2004FairExcellentFairGood4770067.0
November 2003PoorPoorFairFair4770059.2
September 2001PoorPoorPoorFair5130048.2
October 2000PoorPoorPoorFair5130048.2
September 1999PoorPoorPoorFair4510048.2
September 1997FairFairFairSatisfactory2490059.9
June 1995FairFairFairSatisfactory2510067.1
August 1994FairFairFairSatisfactory2510067.1
October 1993FairFairFairSatisfactory2510067.1
May 1992FairSatisfactoryFairSatisfactory2420068.7
November 1990FairSatisfactoryFairSatisfactory2420070.7

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Stringerlinear ft.813805800
Reinforced Concrete Decksq. ft.31,24915,62515,62400
Steel Trusslinear ft.54243710500
Steel Floor Beamlinear ft.91675615730
Steel Gusset Plateeach7674200
Reinforced Concrete Columneach1717000
Reinforced Concrete Pier Caplinear ft.161818000
Strip Seal Jointlinear ft.1641075700
Assembly with Sealeach8282000
Elastomeric Bearingeach2424000
Pot Bearingeach88000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,13501,13500