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I-90 SKYWAY over COTTAGE GROVE AVE

Map

Coordinates:
+41.76397, -87.60550
41°45'50" N, 87°36'20" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-90 SKYWAY over COTTAGE GROVE AVE
Structure number:016630300000000
Old structure number:000016630303774 (from 1992 edition)
Location:0.1 M SE 71ST P7C
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Tolls:Yes, on toll road [2]
Length of largest span:121.4 ft. [37.0 m]
Total length:129.9 ft. [39.6 m]
Roadway width between curbs:99.7 ft. [30.4 m]
Deck width edge-to-edge:106.0 ft. [32.3 m]
Skew angle:45°
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 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:34,000 [as of 2013]
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]
Operating rating:48.8 tons [44.4 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:90.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201590.0FairSatisfactorySatisfactorySatisfactory-34000
September 201390.0FairGoodSatisfactorySatisfactory-34000
September 201183.7FairGoodSatisfactorySatisfactoryFO42100
September 201082.2FairGoodSatisfactorySatisfactoryFO47900
September 200882.2FairGoodSatisfactorySatisfactoryFO47900
November 200782.3FairGoodSatisfactorySatisfactoryFO47700
November 200586.8FairGoodSatisfactorySatisfactory-47700
November 200482.3FairSatisfactorySatisfactorySatisfactoryFO47700
November 200382.3FairGoodSatisfactorySatisfactoryFO47700
November 200181.4FairGoodSatisfactoryGoodFO51300
August 200081.4FairGoodSatisfactoryGoodFO51300
October 199982.9FairGoodSatisfactoryGoodFO45100
September 199790.8FairVery GoodSatisfactoryGoodFO12900
August 199593.0FairVery GoodSatisfactoryGood-12900
August 199493.0FairVery GoodSatisfactoryGood-12900
November 199380.5FairFairFairFair-12900
May 199280.5FairFairFairFair-12900
October 199080.5FairFairFairSatisfactory-12900

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.7807700010
Deck
Reinforced Concrete Decksq. ft.13,35013,2905802
Substructure
Reinforced Concrete Abutmentlinear ft.300293520
Reinforced Concrete Pier Caplinear ft.3042794210
Joints
Strip Seal Jointlinear ft.14710630110
Compression Jointlinear ft.127127000
Bearings
Elastomeric Bearingeach1440100
Fixed Bearingeach1401400
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.50528621900