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I-90 SKYWAY over 75TH ST & GRNWOOD AV

Map

Coordinates:
+41.75866, -87.59800
41°45'31" N, 87°35'53" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-90 SKYWAY over 75TH ST & GRNWOOD AV
Structure number:016644000000000
Old structure number:000016644004113 (from 1992 edition)
Location:2 M SE I94 P7C
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Tolls:Yes, on toll road [2]
Length of largest span:200.1 ft. [61.0 m]
Total length:403.6 ft. [123.0 m]
Roadway width between curbs:88.3 ft. [26.9 m]
Deck width edge-to-edge:94.5 ft. [28.8 m]
Owner:City or Municipal Highway Agency [04]
Year built:1958
Year reconstructed:2002
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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:83.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$5,292,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2017FairSatisfactorySatisfactoryGood3400083.0
September 2015GoodGoodGoodGood3400083.0
September 2013GoodGoodGoodGood3400083.0
September 2011GoodVery GoodGoodGood4210082.0
September 2010GoodVery GoodGoodGood4790082.0
September 2008GoodVery GoodGoodGood4790082.0
October 2007GoodVery GoodGoodGood4770082.0
November 2005GoodVery GoodGoodGood4770079.0
October 2004GoodVery GoodGoodGood4770079.0
October 2003FairVery GoodGoodSatisfactory4770077.0
August 2000PoorSeriousFairPoor5130043.9
September 1999PoorSeriousFairFair4510058.9
September 1997FairFairFairSatisfactory1290068.3
July 1995FairSatisfactoryFairSatisfactory1290071.6
August 1994FairSatisfactoryFairSatisfactory1290071.6
November 1993FairSatisfactoryFairSatisfactory1290071.6
May 1992FairSatisfactoryFairSatisfactory1290071.6
October 1990FairFairSatisfactorySatisfactory1290084.4

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.2,4212,414250
Deck
Reinforced Concrete Decksq. ft.37,831037,83100
Substructure
Reinforced Concrete Columneach99000
Reinforced Concrete Abutmentlinear ft.189189000
Reinforced Concrete Pier Caplinear ft.28119666190
Joints
Strip Seal Jointlinear ft.9393000
Compression Jointlinear ft.4934137640
Assembly with Sealeach9292000
Bearings
Elastomeric Bearingeach2828000
Fixed Bearingeach1414000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,72701,72700