+40.84144, -90.84544
40°50'29" N, 90°50'44" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:TR 178 over S HENDERSON CR
Structure number:036421200000000
Old structure number:000036421208378 (from 1992 edition)
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:69.9 ft. [21.3 m]
Total length:71.9 ft. [21.9 m]
Roadway width between curbs:13.8 ft. [4.2 m]
Deck width edge-to-edge:13.8 ft. [4.2 m]
Owner:Town or Township Highway Agency [03]
Year built:1915
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Main span material:Steel [3]
Main span design:Truss - Thru [10]
Deck type:Wood or Timber [8]

Latest Available Inspection: March 2017

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:25 [as of 2016]
Deck condition:Fair [5 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Basically intolerable requiring high priority of replacement [2]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:23.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$132,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2017PoorFairPoorSatisfactory2523.0
January 2015PoorFairPoorSatisfactory2523.0
February 2013PoorFairSeriousSatisfactory2523.0
February 2011PoorSatisfactoryPoorSatisfactory2524.0
February 2009PoorSatisfactoryPoorSatisfactory2524.0
January 2007PoorSatisfactoryPoorSatisfactory2526.0
January 2005PoorSatisfactoryPoorSatisfactory1026.0
January 2003PoorSatisfactoryPoorSatisfactory1026.0
June 2001PoorSatisfactoryPoorSatisfactory1026.0
March 1999PoorSatisfactorySeriousSatisfactory1024.0
February 1997PoorFairCriticalFair523.0
January 1995PoorFairCriticalFair523.0
January 1993PoorFairCriticalFair523.0
March 1991PoorFairCriticalFair523.0