I-90 SKYWAY over 73RD ST


+41.76211, -87.60315
41°45'44" N, 87°36'11" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-90 SKYWAY over 73RD ST
Structure number:016640300000000
Old structure number:000016640304336 (from 1992 edition)
Location:1.5 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:145.7 ft. [44.4 m]
Total length:155.2 ft. [47.3 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:Superior to present desirable criteria [9]
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:85.3

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201585.3FairSatisfactorySatisfactorySatisfactory-34000
September 201385.3FairGoodSatisfactorySatisfactory-34000
September 201183.0FairGoodSatisfactorySatisfactory-42100
September 201083.0FairGoodSatisfactorySatisfactory-47900
September 200883.0FairGoodSatisfactorySatisfactory-47900
November 200783.0FairGoodSatisfactorySatisfactory-47700
November 200583.0FairGoodSatisfactorySatisfactory-47700
November 200483.0FairSatisfactorySatisfactorySatisfactory-47700
November 200383.0FairGoodSatisfactorySatisfactory-47700
October 200183.0FairGoodSatisfactoryGood-51300
August 200083.0FairGoodSatisfactoryGood-51300
October 199983.0FairGoodSatisfactoryGood-45100
September 199791.0FairVery GoodSatisfactoryGood-12900
August 199591.0FairVery GoodSatisfactoryGood-12900
August 199491.0FairVery GoodSatisfactoryGood-12900
November 199378.2FairFairFairFair-12900
May 199278.2FairFairFairFair-12900
October 199080.2FairFairFairFair-12900

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.932931100
Reinforced Concrete Decksq. ft.16,03015,711301180
Reinforced Concrete Abutmentlinear ft.3002801190
Reinforced Concrete Pier Caplinear ft.30825313420
Strip Seal Jointlinear ft.1483511300
Compression Jointlinear ft.153153000
Elastomeric Bearingeach1413100
Fixed Bearingeach149500
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.60640320300