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I-90 SKYWAY WB over 87TH ST

Map

Coordinates:
+41.73720, -87.56822
41°44'14" N, 87°34'06" W

Facts

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
Superstructure
Steel Girder/Beamlinear ft.841837400
Deck
Reinforced Concrete Decksq. ft.7,0466,72332300
Substructure
Reinforced Concrete Abutmentlinear ft.1431039310
Reinforced Concrete Pier Caplinear ft.15534111100
Joints
Strip Seal Jointlinear ft.701323277
Bearings
Elastomeric Bearingeach70700
Fixed Bearingeach70700
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.281028100