I-55 (SB) over IL 104 / I & M RR


+39.58936, -89.64632
39°35'22" N, 89°38'47" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-55 (SB) over IL 104 / I & M RR
Structure number:084011000000000
Old structure number:000084011025624 (from 1992 edition)
Location:1.5M N DIVERNON INT
Purpose:Carries highway overpass over highway and railroad
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:108.9 ft. [33.2 m]
Total length:280.9 ft. [85.6 m]
Roadway width between curbs:63.3 ft. [19.3 m]
Deck width edge-to-edge:67.3 ft. [20.5 m]
Vertical clearance below bridge:19.7 ft. [6.0 m]
Owner:State Highway Agency [01]
Year built:1972
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:2
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Other [9]

Latest Available Inspection: January 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:19,600 [as of 2017]
Truck traffic:26% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:96.2

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
January 2018FairGoodSatisfactorySatisfactory1960096.2
January 2016FairGoodGoodSatisfactory1745096.4
January 2014FairGoodGoodSatisfactory1790096.3
January 2012FairGoodGoodSatisfactory1775097.2
January 2010FairGoodGoodSatisfactory1805497.2
January 2008FairGoodGoodSatisfactory1755097.2
January 2006FairGoodGoodSatisfactory1820097.2
January 2004FairGoodGoodSatisfactory1590497.3
July 2002FairGoodGoodSatisfactory1590096.0
July 2000FairGoodGoodSatisfactory1695096.0
July 1998GoodGoodGoodGood1695096.0
July 1996GoodGoodGoodGood1270097.0
July 1994GoodGoodGoodGood1300098.0
January 1993GoodGoodGoodGood2130098.0
January 1991GoodGoodGoodGood2130097.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Steel Closed Web/Box Girderlinear ft.110090200
Steel Girder/Beamlinear ft.1,6861,28739900
Prestressed Concrete Girder/Beamlinear ft.491491000
Reinforced Concrete Decksq. ft.19,07218,9848800
Reinforced Concrete Columneach2020000
Reinforced Concrete Pier Walllinear ft.6460400
Reinforced Concrete Abutmentlinear ft.134128150
Reinforced Concrete Pier Caplinear ft.1981842120
Pourable Jointlinear ft.138013800
Movable Bearingeach2202200
Fixed Bearingeach1101100
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.54403442000