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I- 55 WB ELEVATED over ASHLAND AVE VIADUCT

Map 

Coordinates:
+41.83848, -87.66577
41°50'19" N, 87°39'57" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I- 55 WB ELEVATED over ASHLAND AVE VIADUCT
Structure number:016108300000000
Old structure number:000016108326255 (from 1992 edition)
Location:2.6 M SW I-90,94
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:131.6 ft. [40.1 m]
Total length:2456.8 ft. [748.8 m]
Roadway width between curbs:59.1 ft. [18.0 m]
Deck width edge-to-edge:62.3 ft. [19.0 m]
Skew angle:15°
Owner:State Highway Agency [01]
Year built:1963
Year reconstructed:2000
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:31
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:Good
Status:Open, no restriction [A]
Average daily traffic:65,350 [as of 2015]
Truck traffic:9% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Better than present minimum criteria [7]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:71.3 tons [64.8 metric tons]
Inventory rating:44.2 tons [40.2 metric tons]
Sufficiency rating:94.0
Recommended work:Widening of existing bridge with deck rehabilitation or replacement. [34]
Estimated cost of work:$10,356,000

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201594.0GoodGoodVery GoodVery GoodFO65350
August 201394.0GoodGoodVery GoodVery GoodFO64850
August 201194.0GoodGoodVery GoodVery GoodFO70900
September 200994.0GoodGoodVery GoodVery GoodFO78400
October 200794.0GoodGoodVery GoodVery Good-75250
October 200594.0GoodGoodVery GoodVery Good-74000
September 200393.0GoodGoodVery GoodVery Good-64850
December 200190.8GoodGoodVery GoodVery GoodFO54050
December 200090.8GoodGoodExcellentVery GoodFO58700
November 199960.8PoorPoorFairPoorSD58200
January 199960.8PoorPoorFairPoorSD57350
February 199860.8PoorPoorFairPoorSD56250
March 199760.8PoorPoorFairPoorSD66900
February 199561.8PoorPoorFairPoorSD68700
September 199377.8PoorPoorFairFairSD62200
July 199164.0PoorPoorPoorPoorSD61350