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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

Facts

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

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.12,81012,810000
Deck
Reinforced Concrete Decksq. ft.141,225130,91510,31000
Substructure
Reinforced Concrete Columneach174174000
Reinforced Concrete Pier Walllinear ft.1,8201,820000
Reinforced Concrete Abutmentlinear ft.133133000
Reinforced Concrete Pier Caplinear ft.1,9531,953000
Joints
Strip Seal Jointlinear ft.127121060
Compression Jointlinear ft.8282000
Assembly with Sealeach271271000
Bearings
Elastomeric Bearingeach195189060
Fixed Bearingeach7676000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.4,2564,256000