I-90 SKYWAY WB over 87TH ST


+41.73720, -87.56822
41°44'14" N, 87°34'06" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I-90 SKYWAY WB over 87TH ST
Structure number:016640900000000
Old structure number:000016640904371 (from 1992 edition)
Location:0.1 W S 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:135.8 ft. [41.4 m]
Total length:140.1 ft. [42.7 m]
Roadway width between curbs:47.2 ft. [14.4 m]
Deck width edge-to-edge:50.5 ft. [15.4 m]
Skew angle:45°
Owner:City or Municipal Highway Agency [04]
Year built:1958
Year reconstructed:2007
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:17,000 [as of 2013]
Truck traffic:13% of total traffic
Deck condition:Good [7 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:Meets minimum tolerable limits to be left in place as is [4]
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:84.8

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201584.8Not deficientGoodSatisfactorySatisfactory17000
September 201384.8Not deficientGoodSatisfactorySatisfactory17000
September 201182.6Not deficientVery GoodSatisfactorySatisfactory21050
October 201081.0Not deficientVery GoodSatisfactorySatisfactory23950
September 200881.0Not deficientVery GoodSatisfactorySatisfactory23950
November 200781.1Not deficientExcellentSatisfactorySatisfactory23850
November 200570.0Not deficientSatisfactorySatisfactoryFair23850
November 200469.0Not deficientFairSatisfactoryFair23850
November 200369.0Not deficientFairSatisfactoryFair23850
October 200169.0Not deficientFairFairFair25650
September 200069.0Not deficientFairFairFair25650
October 199969.0Not deficientFairFairFair22550
September 199777.6Not deficientSatisfactorySatisfactoryFair8550
August 199577.5Not deficientSatisfactorySatisfactoryFair8550
August 199477.5Not deficientSatisfactorySatisfactoryFair8550
November 199377.5Not deficientSatisfactorySatisfactoryFair8550
May 199275.5Not deficientFairSatisfactoryFair8550
October 199077.5Not deficientFairSatisfactoryFair8550