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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

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
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

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.14,74114,741000
Prestressed Concrete Girder/Beamlinear ft.350350000
Deck
Reinforced Concrete Decksq. ft.181,312174,9626,35000
Substructure
Reinforced Concrete Columneach200197300
Reinforced Concrete Pier Walllinear ft.2,5432,542010
Reinforced Concrete Abutmentlinear ft.129129000
Reinforced Concrete Pier Caplinear ft.2,6722,672000
Joints
Strip Seal Jointlinear ft.613120010
Assembly with Sealeach3773670100
Bearings
Elastomeric Bearingeach255025500
Fixed Bearingeach7007000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.4,81404,724900