I-90 SKYWAY over AVE "M"


+41.71488, -87.53768
41°42'54" N, 87°32'16" 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 2015 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:34,000 [as of 2013]
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]
Operating rating:78.1 tons [71.0 metric tons]
Inventory rating:46.6 tons [42.4 metric tons]
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 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201572.0FairGoodFairGood-34000
September 201372.0FairGoodFairGood-34000
September 201167.0FairVery GoodFairGood-42100
September 201067.0FairVery GoodFairGood-47900
September 200867.0FairVery GoodFairGood-47900
September 200767.0FairVery GoodFairGood-47700
November 200567.0FairExcellentFairGood-47700
November 200467.0FairExcellentFairGood-47700
November 200359.2PoorPoorFairFairSD47700
September 200148.2PoorPoorPoorFairSD51300
October 200048.2PoorPoorPoorFairSD51300
September 199948.2PoorPoorPoorFairSD45100
September 199759.9FairFairFairSatisfactoryFO24900
June 199567.1FairFairFairSatisfactoryFO25100
August 199467.1FairFairFairSatisfactoryFO25100
October 199367.1FairFairFairSatisfactoryFO25100
May 199268.7FairSatisfactoryFairSatisfactoryFO24200
November 199070.7FairSatisfactoryFairSatisfactoryFO24200