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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 

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: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. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201584.1FairSatisfactorySatisfactorySatisfactory-34000
September 201384.1FairSatisfactorySatisfactorySatisfactory-34000
September 201184.0FairSatisfactorySatisfactorySatisfactory-42100
October 201073.0FairSatisfactorySatisfactoryFair-47900
September 200873.0FairSatisfactorySatisfactoryFair-47900
November 200773.0FairSatisfactorySatisfactoryFair-47700
November 200573.0FairSatisfactorySatisfactoryFair-47700
October 200473.0FairSatisfactorySatisfactoryFair-47700
October 200373.0FairSatisfactorySatisfactoryFair-47700
October 200184.0FairSatisfactorySatisfactorySatisfactory-51300
October 200084.0FairSatisfactorySatisfactorySatisfactory-51300
October 199984.0FairSatisfactorySatisfactorySatisfactory-45100
August 199792.1FairSatisfactorySatisfactoryGood-12900
August 199592.1FairVery GoodSatisfactoryGood-12900
August 199492.1FairVery GoodSatisfactoryGood-12900
November 199379.3FairFairFairFair-12900
May 199279.3FairFairFairFair-12900
October 199081.3FairFairFairFair-12900