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I- 55 WB STEVENSON over WESTERN AVE VIADUCT

Map

Coordinates:
+41.83321, -87.69159
41°49'60" N, 87°41'30" 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:29.5 ft. [9.0 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]
Sufficiency rating:89.0
Recommended work:Bridge deck rehabilitation with only incidental widening. [36]
Estimated cost of work:$9,801,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2016GoodGoodVery GoodVery Good8570089.0
October 2014GoodGoodVery GoodVery Good8505089.0
November 2012GoodGoodVery GoodVery Good34000071.0
January 2011GoodGoodVery GoodVery Good9230089.0
February 2009GoodGoodVery GoodVery Good10125089.0
February 2007GoodGoodVery GoodVery Good10030089.0
May 2005GoodVery GoodVery GoodVery Good9995089.0
June 2003GoodVery GoodVery GoodVery Good8495089.0
July 2001GoodVery GoodVery GoodVery Good6685094.0
November 2000GoodVery GoodExcellentVery Good5870094.0
October 1999PoorPoorFairPoor7480064.0
January 1999PoorPoorFairPoor7270064.0
January 1998PoorPoorFairPoor7285064.0
February 1997PoorPoorFairPoor7060064.0
February 1995PoorPoorFairFair7500079.0
September 1993PoorPoorFairFair6725079.0
July 1991PoorPoorFairPoor6955063.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.12,81012,810000
Deck
Reinforced Concrete Decksq. ft.141,225130,72510,50000
Substructure
Reinforced Concrete Columneach174174000
Reinforced Concrete Pier Walllinear ft.1,8201,818200
Reinforced Concrete Abutmentlinear ft.133133000
Reinforced Concrete Pier Caplinear ft.1,9531,9431000
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