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I-90 SKYWAY over STONY ISLAND AVE

Map

Coordinates:
+41.74983, -87.58571
41°44'59" N, 87°35'09" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-90 SKYWAY over STONY ISLAND AVE
Structure number:016640400000000
Old structure number:000016640404264 (from 1992 edition)
Location:0.1 M S 79TH P7C
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Tolls:Yes, on toll road [2]
Length of largest span:142.7 ft. [43.5 m]
Total length:294.6 ft. [89.8 m]
Roadway width between curbs:100.1 ft. [30.5 m]
Deck width edge-to-edge:106.0 ft. [32.3 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:44°
Owner:City or Municipal Highway Agency [04]
Year built:1958
Year reconstructed:1994
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:2
Main spans material:Steel continuous [4]
Main spans 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 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:34,000 [as of 2016]
Truck traffic:13% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:84.1

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2017FairSatisfactorySatisfactoryGood3400084.1
August 2015FairSatisfactorySatisfactorySatisfactory3400084.1
September 2013FairSatisfactorySatisfactorySatisfactory3400084.1
September 2011FairSatisfactorySatisfactorySatisfactory4210084.0
October 2010FairSatisfactorySatisfactoryFair4790073.0
September 2008FairSatisfactorySatisfactoryFair4790073.0
November 2007FairSatisfactorySatisfactoryFair4770073.0
November 2005FairSatisfactorySatisfactoryFair4770073.0
October 2004FairSatisfactorySatisfactoryFair4770073.0
October 2003FairSatisfactorySatisfactoryFair4770073.0
October 2001FairSatisfactorySatisfactorySatisfactory5130084.0
October 2000FairSatisfactorySatisfactorySatisfactory5130084.0
October 1999FairSatisfactorySatisfactorySatisfactory4510084.0
August 1997FairSatisfactorySatisfactoryGood1290092.1
August 1995FairVery GoodSatisfactoryGood1290092.1
August 1994FairVery GoodSatisfactoryGood1290092.1
November 1993FairFairFairFair1290079.3
May 1992FairFairFairFair1290079.3
October 1990FairFairFairFair1290081.3

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.1,7671,760700
Deck
Reinforced Concrete Decksq. ft.30,60615,25715,34900
Substructure
Steel Columneach1515000
Reinforced Concrete Abutmentlinear ft.295291400
Steel Pileeach2522300
Reinforced Concrete Pier Caplinear ft.308304400
Joints
Strip Seal Jointlinear ft.294294000
Compression Jointlinear ft.200200000
Open Jointlinear ft.9090000
Bearings
Elastomeric Bearingeach3232000
Fixed Bearingeach1616000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,16380435900