Knightly Mill Rd over MIDDLE RIVER


+38.23016, -78.92606
38°13'49" N, 78°55'34" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:Knightly Mill Rd over MIDDLE RIVER
Structure number:000000000002320
Location:0.26 RT 777 - 2.05 RT 608
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:182.1 ft. [55.5 m]
Total length:182.1 ft. [55.5 m]
Roadway width between curbs:14.4 ft. [4.4 m]
Deck width edge-to-edge:15.7 ft. [4.8 m]
Vertical clearance above deck:15.4 ft. [4.7 m]
Vertical clearance below bridge:9.8 ft. [3.0 m]
Owner:State Highway Agency [01]
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]
Wearing surface:Wood or Timber [7]

Latest Available Inspection: April 2018

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:292 [as of 2014]
Deck condition:Good [7 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:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Basically intolerable requiring high priority of replacement [2]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Countermeasures have been installed to mitigate an existing problem with scour. [7]
Sufficiency rating:16.2
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$788,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2018PoorGoodPoorSatisfactory29216.2
April 2017PoorGoodPoorSatisfactory29216.2
April 2016PoorGoodPoorSatisfactory29225.3
April 2015PoorGoodPoorSatisfactory29225.3
June 2014PoorGoodPoorSatisfactory31525.2
June 2013PoorGoodPoorSatisfactory31525.2
June 2012PoorGoodPoorSatisfactory31525.2
June 2011PoorGoodPoorSatisfactory31525.2
June 2010PoorSatisfactoryPoorSatisfactory31525.2
June 2009PoorVery GoodPoorSatisfactory31525.2
June 2008PoorVery GoodPoorSatisfactory31525.2
August 2007PoorVery GoodPoorSatisfactory31416.0
August 2006PoorVery GoodPoorSatisfactory31416.0
October 2005PoorVery GoodPoorSatisfactory31416.0
June 2004PoorGoodPoorFair31416.0
July 2003PoorGoodPoorFair31416.0
June 2002PoorGoodPoorFair31416.0
July 2001PoorGoodPoorFair12418.0
June 2000PoorGoodPoorFair12418.0
July 1999PoorGoodPoorFair12418.0
June 1998PoorVery GoodPoorFair12418.0
June 1997PoorVery GoodPoorFair12418.0
June 1996PoorVery GoodPoorFair12418.0
June 1995PoorVery GoodPoorFair12418.7
July 1994PoorVery GoodPoorFair12418.7
June 1993----12439.9
October 1991PoorVery GoodPoorFair14618.5
September 1990PoorVery GoodPoorFair14618.5