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IL 57 over HARKNESS CREEK

Map

Coordinates:
+39.81670, -91.34041
39°49'00" N, 91°20'25" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IL 57 over HARKNESS CREEK
Structure number:001001600000000
Old structure number:000001001600617 (from 1992 edition)
Location:AT BLUFF HALL
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:30.8 ft. [9.4 m]
Total length:32.2 ft. [9.8 m]
Roadway width between curbs:37.1 ft. [11.3 m]
Deck width edge-to-edge:40.4 ft. [12.3 m]
Owner:State Highway Agency [01]
Year built:1941
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Main span material:Concrete [1]
Main span design:Tee beam [04]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Other [9]

Latest Available Inspection: April 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:4,400 [as of 2015]
Truck traffic:18% 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:86.3

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2016FairFairFairSatisfactory440086.3
April 2014FairFairFairSatisfactory415086.3
April 2012FairFairFairSatisfactory410086.3
April 2010FairFairFairSatisfactory385086.4
April 2008FairFairFairSatisfactory385086.4
April 2006FairFairFairSatisfactory405086.3
April 2004FairSatisfactoryFairSatisfactory455087.3
April 2002FairSatisfactoryFairSatisfactory395087.8
April 2000FairSatisfactoryFairSatisfactory400085.8
April 1998FairSatisfactoryFairSatisfactory365085.8
May 1996FairSatisfactoryFairSatisfactory360085.8
May 1994FairSatisfactoryFairSatisfactory405083.6
May 1992FairSatisfactoryFairSatisfactory435083.6
May 1991FairFairFairFair435082.6

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Reinforced Concrete Girder/Beamlinear ft.19211112690
Substructure
Reinforced Concrete Abutmentlinear ft.81671130
Reinforced Concrete Pier Caplinear ft.845114910
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.6406400
Deck
Reinforced Concrete Slabsq. ft.1,1843736790132