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I-90WB TO NB STONY over CONRAIL & AMTRAK

Map 

Coordinates:
+41.75685, -87.59558
41°45'25" N, 87°35'44" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I-90WB TO NB STONY over CONRAIL & AMTRAK
Structure number:016647900000000
Old structure number:000016647906318 (from 1992 edition)
Location:0.13 M S 79TH P7C
Purpose:Carries highway overpass over railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Tolls:Yes, on toll road [2]
Length of largest span:112.9 ft. [34.4 m]
Total length:333.3 ft. [101.6 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:30.8 ft. [9.4 m]
Vertical clearance below bridge:22.3 ft. [6.8 m]
Owner:City or Municipal Highway Agency [04]
Year built:1958
Year reconstructed:1998
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:3
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: September 2015 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:4,000 [as of 2000]
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
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:86.3
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$1,362,000

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201586.3FairGoodSatisfactoryFair-4000
September 201386.3FairGoodSatisfactoryFair-4000
September 201186.3FairGoodSatisfactoryFair-4009
September 201086.3FairGoodSatisfactoryFair-4009
October 200886.3FairGoodSatisfactoryFair-4009
November 200786.3FairGoodSatisfactoryFair-4009
November 200567.1FairVery GoodSatisfactoryFairFO4009
December 200467.1FairVery GoodSatisfactoryFairFO4009
October 200367.1FairVery GoodSatisfactoryFairFO4009
October 200167.1FairVery GoodSatisfactoryFairFO4009
October 200067.1FairVery GoodSatisfactoryFairFO4009
October 199967.1FairVery GoodSatisfactoryFairFO4009
September 199749.7PoorFairPoorFairSD4009
June 199566.0PoorFairPoorFairSD-
July 199466.0PoorFairPoorFairSD-
November 199366.0PoorFairPoorFairSD-
May 199266.0PoorFairPoorFairSD-
October 199080.0PoorPoorFairFairSD-