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I-90 SKYWAY over ST LAWRENCE AVE

Map

Coordinates:
+41.76802, -87.61102
41°46'05" N, 87°36'40" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-90 SKYWAY over ST LAWRENCE AVE
Structure number:016630100000000
Old structure number:000016630103772 (from 1992 edition)
Location:AT 70TH P7C
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Tolls:Yes, on toll road [2]
Length of largest span:125.7 ft. [38.3 m]
Total length:133.9 ft. [40.8 m]
Roadway width between curbs:103.7 ft. [31.6 m]
Deck width edge-to-edge:109.9 ft. [33.5 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]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

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:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:93.2

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2017FairSatisfactorySatisfactorySatisfactory3400093.2
August 2015FairSatisfactorySatisfactorySatisfactory3400093.2
September 2013FairGoodSatisfactorySatisfactory3400093.2
September 2011FairGoodSatisfactorySatisfactory4210087.8
September 2010FairGoodSatisfactorySatisfactory4790086.9
September 2008FairGoodSatisfactorySatisfactory4790086.9
November 2007FairGoodSatisfactorySatisfactory4770087.0
November 2005FairGoodSatisfactorySatisfactory4770087.0
October 2004FairGoodSatisfactorySatisfactory4770087.0
November 2003FairGoodGoodSatisfactory4770087.0
November 2001FairVery GoodSatisfactorySatisfactory5130086.4
August 2000FairVery GoodSatisfactorySatisfactory5130086.4
September 1999FairVery GoodSatisfactorySatisfactory4510087.3
September 1997FairVery GoodSatisfactoryGood1290092.1
August 1995FairVery GoodSatisfactoryGood1290096.1
August 1994FairVery GoodSatisfactoryGood1290096.1
November 1993FairFairFairFair1290083.7
May 1992FairFairFairFair1290083.7
October 1990FairFairFairFair1290083.7

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.804796800
Deck
Reinforced Concrete Decksq. ft.14,33912,9351,388160
Substructure
Reinforced Concrete Abutmentlinear ft.3052911310
Reinforced Concrete Pier Caplinear ft.3303032700
Joints
Strip Seal Jointlinear ft.1539638163
Compression Jointlinear ft.132122640
Bearings
Elastomeric Bearingeach1501500
Fixed Bearingeach1501410
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.5211250720