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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 

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. ratingEvaluationDeckSuper.Sub.ADT
September 201586.3Not deficientGoodSatisfactoryFair4000
September 201386.3Not deficientGoodSatisfactoryFair4000
September 201186.3Not deficientGoodSatisfactoryFair4009
September 201086.3Not deficientGoodSatisfactoryFair4009
October 200886.3Not deficientGoodSatisfactoryFair4009
November 200786.3Not deficientGoodSatisfactoryFair4009
November 200567.1Functionally obsoleteVery GoodSatisfactoryFair4009
December 200467.1Functionally obsoleteVery GoodSatisfactoryFair4009
October 200367.1Functionally obsoleteVery GoodSatisfactoryFair4009
October 200167.1Functionally obsoleteVery GoodSatisfactoryFair4009
October 200067.1Functionally obsoleteVery GoodSatisfactoryFair4009
October 199967.1Functionally obsoleteVery GoodSatisfactoryFair4009
September 199749.7Structurally deficientFairPoorFair4009
June 199566.0Structurally deficientFairPoorFair-
July 199466.0Structurally deficientFairPoorFair-
November 199366.0Structurally deficientFairPoorFair-
May 199266.0Structurally deficientFairPoorFair-
October 199080.0Structurally deficientPoorFairFair-