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

Good/Fair/Poor Condition:Fair
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. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201584.8FairGoodSatisfactorySatisfactory-17000
September 201384.8FairGoodSatisfactorySatisfactory-17000
September 201182.6FairVery GoodSatisfactorySatisfactory-21050
October 201081.0FairVery GoodSatisfactorySatisfactory-23950
September 200881.0FairVery GoodSatisfactorySatisfactory-23950
November 200781.1FairExcellentSatisfactorySatisfactory-23850
November 200570.0FairSatisfactorySatisfactoryFair-23850
November 200469.0FairFairSatisfactoryFair-23850
November 200369.0FairFairSatisfactoryFair-23850
October 200169.0FairFairFairFair-25650
September 200069.0FairFairFairFair-25650
October 199969.0FairFairFairFair-22550
September 199777.6FairSatisfactorySatisfactoryFair-8550
August 199577.5FairSatisfactorySatisfactoryFair-8550
August 199477.5FairSatisfactorySatisfactoryFair-8550
November 199377.5FairSatisfactorySatisfactoryFair-8550
May 199275.5FairFairSatisfactoryFair-8550
October 199077.5FairFairSatisfactoryFair-8550

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.841837400
Reinforced Concrete Decksq. ft.7,0466,72332300
Reinforced Concrete Abutmentlinear ft.1431039310
Reinforced Concrete Pier Caplinear ft.15534111100
Strip Seal Jointlinear ft.701323277
Elastomeric Bearingeach70700
Fixed Bearingeach70700
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.281028100