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 

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. ratingEvaluationDeckSuper.Sub.ADT
August 201583.0Not deficientVery GoodSatisfactorySatisfactory34000
September 201383.0Not deficientVery GoodSatisfactorySatisfactory34000
September 201183.0Not deficientVery GoodSatisfactorySatisfactory42100
October 201083.0Not deficientVery GoodSatisfactorySatisfactory47900
September 200883.0Not deficientVery GoodSatisfactorySatisfactory47900
November 200783.0Not deficientExcellentSatisfactorySatisfactory47700
November 200572.0Not deficientSatisfactorySatisfactoryFair47700
October 200472.0Not deficientSatisfactorySatisfactoryFair47700
November 200372.0Not deficientSatisfactoryGoodFair47700
October 200172.0Not deficientSatisfactorySatisfactoryFair51300
September 200072.0Not deficientSatisfactorySatisfactoryFair51300
October 199972.0Not deficientSatisfactorySatisfactoryFair45100
September 199774.6Not deficientSatisfactorySatisfactoryFair17100
August 199574.4Not deficientSatisfactorySatisfactoryFair17100
August 199474.4Not deficientSatisfactorySatisfactoryFair17100
November 199374.4Not deficientSatisfactorySatisfactoryFair17100
May 199273.3Not deficientFairFairFair17100
October 199073.3Not deficientFairFairFair17100