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I-90 SKYWAY over STONY ISLAND AVE

Map 

Coordinates:
+41.74985, -87.58575
41°44'59" N, 87°35'09" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

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:14.1 ft. [4.3 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]

Latest Available Inspection: August 2015 

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: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]
Operating rating:48.8 tons [44.4 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:84.1

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201584.1Not deficientSatisfactorySatisfactorySatisfactory34000
September 201384.1Not deficientSatisfactorySatisfactorySatisfactory34000
September 201184.0Not deficientSatisfactorySatisfactorySatisfactory42100
October 201073.0Not deficientSatisfactorySatisfactoryFair47900
September 200873.0Not deficientSatisfactorySatisfactoryFair47900
November 200773.0Not deficientSatisfactorySatisfactoryFair47700
November 200573.0Not deficientSatisfactorySatisfactoryFair47700
October 200473.0Not deficientSatisfactorySatisfactoryFair47700
October 200373.0Not deficientSatisfactorySatisfactoryFair47700
October 200184.0Not deficientSatisfactorySatisfactorySatisfactory51300
October 200084.0Not deficientSatisfactorySatisfactorySatisfactory51300
October 199984.0Not deficientSatisfactorySatisfactorySatisfactory45100
August 199792.1Not deficientSatisfactorySatisfactoryGood12900
August 199592.1Not deficientVery GoodSatisfactoryGood12900
August 199492.1Not deficientVery GoodSatisfactoryGood12900
November 199379.3Not deficientFairFairFair12900
May 199279.3Not deficientFairFairFair12900
October 199081.3Not deficientFairFairFair12900