+41.26218, -89.35365
41°15'44" N, 89°21'13" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-180 over ILLINOIS RIVER
Structure number:078000100000000
Old structure number:000078000117366 (from 1992 edition)
Location:1.82 MI E OF ILL 26
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:375.0 ft. [114.3 m]
Total length:3083.5 ft. [939.8 m]
Roadway width between curbs:59.4 ft. [18.1 m]
Deck width edge-to-edge:65.0 ft. [19.8 m]
Vertical clearance below bridge:39.4 ft. [12.0 m]
Owner:State Highway Agency [01]
Year built:1969
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:3
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: May 2017

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:3,450 [as of 2017]
Truck traffic:34% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:75.3

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2017PoorPoorFairSatisfactory345075.3
May 2016PoorPoorFairSatisfactory250075.8
July 2015PoorFairSeriousSatisfactory250043.6
May 2014PoorFairSeriousSatisfactory260043.5
May 2012FairFairFairSatisfactory265061.0
May 2010FairFairSatisfactorySatisfactory305088.7
June 2008FairFairFairSatisfactory305077.5
April 2006FairSatisfactorySatisfactorySatisfactory275089.9
June 2004FairSatisfactorySatisfactoryFair280078.7
August 2002FairSatisfactorySatisfactorySatisfactory330089.7
August 2000FairSatisfactorySatisfactorySatisfactory300089.8
August 1998FairGoodSatisfactoryGood300089.8
August 1997FairGoodSatisfactoryGood365089.5
August 1995FairGoodSatisfactoryGood365089.5
January 1994FairSatisfactorySatisfactorySatisfactory330089.7
February 1992FairSatisfactorySatisfactorySatisfactory340089.6

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.18,84910,2786,5881,88895
Reinforced Concrete Decksq. ft.200,20099,51972,73722,4345,510
Reinforced Concrete Pier Walllinear ft.1,0109981020
Reinforced Concrete Abutmentlinear ft.130128200
Reinforced Concrete Pier Caplinear ft.1,1201,0685200
Strip Seal Jointlinear ft.130128002
Compression Jointlinear ft.260260000
Assembly without Seal Jointlinear ft.260258002
Movable Bearingeach70125350
Fixed Bearingeach5605150
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.9,2363,2873,9561,383610