+38.47765, -89.68265
38°28'40" N, 89°40'58" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:ILL 177 over QUEENS LAKE
Structure number:014000300000000
Old structure number:000014000303274 (from 1992 edition)
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:25.9 ft. [7.9 m]
Total length:70.9 ft. [21.6 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:34.5 ft. [10.5 m]
Skew angle:35°
Owner:State Highway Agency [01]
Year built:1922
Year reconstructed:1997
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Concrete continuous [2]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: July 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:2,400 [as of 2017]
Truck traffic:7% of total traffic
Deck condition:Fair [5 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:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:77.4

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2018FairFairFairSatisfactory240077.4
July 2017FairFairFairSatisfactory240077.4
July 2016FairFairFairSatisfactory235077.4
July 2015FairFairFairSatisfactory235077.4
July 2014FairFairFairSatisfactory165078.5
July 2012FairFairFairSatisfactory200058.8
July 2011FairFairFairSatisfactory200078.3
July 2010FairFairFairSatisfactory165078.4
July 2009FairFairFairSatisfactory165078.4
July 2008PoorSatisfactoryPoorSatisfactory175063.3
October 2006FairSatisfactorySatisfactorySatisfactory160090.5
March 2005FairGoodSatisfactorySatisfactory160091.0
March 2003FairGoodSatisfactorySatisfactory160091.0
September 2001FairGoodSatisfactorySatisfactory160091.0
September 1999FairGoodSatisfactorySatisfactory165091.0
March 1999FairGoodSatisfactorySatisfactory140091.0
February 1997FairGoodFairFair140080.0
February 1995FairGoodFairFair140076.9
January 1993FairGoodFairFair140071.9
January 1991FairGoodFairFair145072.9