Tower Hill Road over Slate River


+37.47218, -78.68165
37°28'20" N, 78°40'54" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:Tower Hill Road over Slate River
Structure number:000000000004079
Location:1.60-Rt.697 / 1.20-Rt.24
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:25.9 ft. [7.9 m]
Total length:25.9 ft. [7.9 m]
Roadway width between curbs:19.0 ft. [5.8 m]
Deck width edge-to-edge:20.0 ft. [6.1 m]
Owner:State Highway Agency [01]
Year built:1957
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Wood or Timber [8]
Wearing surface:Bituminous [6]

Latest Available Inspection: July 2018

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:32 [as of 2014]
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Better than present minimum criteria [7]
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 assessed or calculated scour condition. [5]
Sufficiency rating:64.5
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$391,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2018FairSatisfactorySatisfactorySatisfactory3264.5
July 2017FairGoodSatisfactorySatisfactory3264.5
July 2016FairGoodSatisfactorySatisfactory3264.5
July 2015FairGoodSatisfactorySatisfactory3264.5
July 2014FairGoodSatisfactoryGood3064.5
July 2013FairGoodSatisfactoryGood2964.5
July 2012FairGoodSatisfactoryGood2964.5
July 2011FairGoodSatisfactoryGood2977.8
July 2010FairGoodSatisfactoryGood2977.8
July 2009GoodGoodGoodVery Good2973.8
August 2008GoodGoodGoodVery Good4176.8
August 2007GoodGoodGoodVery Good4175.2
September 2006GoodGoodGoodGood2575.2
September 2005GoodGoodGoodVery Good2575.2
October 2004GoodGoodGoodGood2575.2
October 2003GoodGoodGoodGood4275.2
September 2002GoodGoodGoodGood4276.2
September 2001GoodGoodGoodGood4276.2
October 2000GoodGoodGoodGood4074.2
September 1999GoodGoodGoodGood4074.2
September 1998GoodGoodVery GoodGood3374.2
September 1997GoodGoodVery GoodGood8874.2
December 1996GoodVery GoodVery GoodGood3874.2
January 1996GoodVery GoodVery GoodGood3874.2
December 1994GoodVery GoodVery GoodVery Good3874.2
November 1993GoodVery GoodVery GoodVery Good3574.2
November 1992GoodVery GoodVery GoodVery Good3874.2
October 1991GoodVery GoodVery GoodVery Good3874.2