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I-90 SKYWAY over CONRAIL RR

Map 

Coordinates:
+41.71533, -87.53901
41°42'55" N, 87°32'20" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I-90 SKYWAY over CONRAIL RR
Structure number:016642100000000
Old structure number:000016642105741 (from 1992 edition)
Location:0.19 M NW 100TH
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Tolls:Yes, on toll road [2]
Length of largest span:155.2 ft. [47.3 m]
Total length:404.9 ft. [123.4 m]
Roadway width between curbs:77.4 ft. [23.6 m]
Deck width edge-to-edge:83.0 ft. [25.3 m]
Vertical clearance below bridge:49.9 ft. [15.2 m]
Owner:City or Municipal Highway Agency [04]
Year built:1958
Year reconstructed:2003
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 continuous [4]
Main spans design:Truss - Deck [09]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: September 2015 

Status:Open, no restriction [A]
Average daily traffic:34,000 [as of 2013]
Truck traffic:13% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Good [7 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:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:71.0 tons [64.5 metric tons]
Inventory rating:42.5 tons [38.6 metric tons]
Sufficiency rating:72.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$5,325,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
September 201572.0Not deficientGoodFairGood34000
September 201372.0Not deficientGoodFairVery Good34000
September 201167.0Not deficientVery GoodFairVery Good42100
October 200967.0Not deficientVery GoodFairVery Good47900
September 200867.0Not deficientVery GoodFairVery Good47900
September 200767.0Not deficientVery GoodFairVery Good47700
November 200567.0Not deficientExcellentFairVery Good47700
October 200467.0Not deficientExcellentFairVery Good47700
October 200345.8Structurally deficientPoorPoorPoor47700
September 200145.8Structurally deficientPoorPoorFair51300
October 200045.8Structurally deficientPoorPoorFair51300
September 199945.8Structurally deficientPoorPoorFair45100
September 199762.9Functionally obsoleteFairFairFair24900
June 199570.1Not deficientFairFairFair25100
August 199470.1Not deficientFairFairFair25100
October 199370.1Not deficientFairFairFair25100
May 199271.7Not deficientSatisfactorySatisfactoryFair24200
November 199086.2Not deficientSatisfactorySatisfactorySatisfactory24200