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I- 55 WB STEVENSON over WESTERN AVE VIADUCT

Map 

Coordinates:
+41.83568, -87.68459
41°50'08" N, 87°41'05" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I- 55 WB STEVENSON over WESTERN AVE VIADUCT
Structure number:016002600000000
Old structure number:000016002603701 (from 1992 edition)
Location:2.5 M SW DAN RYAN
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:117.8 ft. [35.9 m]
Total length:2134.9 ft. [650.7 m]
Roadway width between curbs:59.1 ft. [18.0 m]
Deck width edge-to-edge:62.3 ft. [19.0 m]
Vertical clearance below bridge:29.9 ft. [9.1 m]
Skew angle:21°
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+Mod / HS 20+Mod [6]
Number of main spans:27
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: September 2016 

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:85,700 [as of 2016]
Truck traffic:7% 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:77.0 tons [70.0 metric tons]
Inventory rating:46.3 tons [42.1 metric tons]
Sufficiency rating:89.0
Recommended work:Bridge deck rehabilitation with only incidental widening. [36]
Estimated cost of work:$9,801,000

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201689.0GoodGoodVery GoodVery GoodFO85700
October 201489.0GoodGoodVery GoodVery GoodFO85050
November 201271.0GoodGoodVery GoodVery GoodFO340000
January 201189.0GoodGoodVery GoodVery GoodFO92300
February 200989.0GoodGoodVery GoodVery GoodFO101250
February 200789.0GoodGoodVery GoodVery Good-100300
May 200589.0GoodVery GoodVery GoodVery Good-99950
June 200389.0GoodVery GoodVery GoodVery Good-84950
July 200194.0GoodVery GoodVery GoodVery GoodFO66850
November 200094.0GoodVery GoodExcellentVery GoodFO58700
October 199964.0PoorPoorFairPoorSD74800
January 199964.0PoorPoorFairPoorSD72700
January 199864.0PoorPoorFairPoorSD72850
February 199764.0PoorPoorFairPoorSD70600
February 199579.0PoorPoorFairFairSD75000
September 199379.0PoorPoorFairFairSD67250
July 199163.0PoorPoorFairPoorSD69550