I-90 SKYWAY over 85TH ST


+41.74072, -87.57337
41°44'27" 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 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: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]
Operating rating:48.8 tons [44.4 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:83.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201583.0FairVery GoodSatisfactorySatisfactory-34000
September 201383.0FairVery GoodSatisfactorySatisfactory-34000
September 201183.0FairVery GoodSatisfactorySatisfactory-42100
October 201083.0FairVery GoodSatisfactorySatisfactory-47900
September 200883.0FairVery GoodSatisfactorySatisfactory-47900
November 200783.0FairExcellentSatisfactorySatisfactory-47700
November 200572.0FairSatisfactorySatisfactoryFair-47700
October 200472.0FairSatisfactorySatisfactoryFair-47700
November 200372.0FairSatisfactoryGoodFair-47700
October 200172.0FairSatisfactorySatisfactoryFair-51300
September 200072.0FairSatisfactorySatisfactoryFair-51300
October 199972.0FairSatisfactorySatisfactoryFair-45100
September 199774.6FairSatisfactorySatisfactoryFair-17100
August 199574.4FairSatisfactorySatisfactoryFair-17100
August 199474.4FairSatisfactorySatisfactoryFair-17100
November 199374.4FairSatisfactorySatisfactoryFair-17100
May 199273.3FairFairFairFair-17100
October 199073.3FairFairFairFair-17100

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.59846313050
Reinforced Concrete Decksq. ft.10,62010,01960100
Reinforced Concrete Abutmentlinear ft.2902561330
Reinforced Concrete Pier Caplinear ft.3012381620
Strip Seal Jointlinear ft.1440134010
Pourable Jointlinear ft.101101000
Elastomeric Bearingeach1615010
Fixed Bearingeach1601600
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.4013713000