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NH 11 over CONNECTICUT RIVER

Map

Coordinates:
+43.26011, -72.42717
43°15'36" N, 72°25'38" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:NH 11 over CONNECTICUT RIVER
Structure number:004201350005200
Location:NH VT STATE LINE
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:165.0 ft. [50.3 m]
Total length:500.0 ft. [152.4 m]
Roadway width between curbs:21.0 ft. [6.4 m]
Deck width edge-to-edge:22.0 ft. [6.7 m]
Vertical clearance above deck:16.4 ft. [5.0 m]
Owner:State Highway Agency [01]
Year reconstructed:2016
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:M 13.5 / H 15 [2]
Number of main spans:3
Main spans material:Steel [3]
Main spans design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: November 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:7,056 [as of 2017]
Truck traffic:4% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present minimum criteria [6]
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:Countermeasures have been installed to mitigate an existing problem with scour. [7]
Sufficiency rating:50.2
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$3,142,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2018FairSatisfactoryFairFair705650.2
December 2016FairSatisfactoryFairSatisfactory640051.6
May 2014FairSatisfactoryFairSatisfactory640051.6
September 2013FairSatisfactoryFairSatisfactory620052.0
May 2012FairSatisfactoryFairSatisfactory620052.0
April 2010FairSatisfactoryFairSatisfactory670050.9
September 2008FairSatisfactoryFairSatisfactory660051.1
August 2006FairSatisfactoryFairFair660051.1
October 2005FairGoodFairFair350057.6
June 2002FairGoodFairSatisfactory350055.6
May 1999FairGoodFairSatisfactory350055.6
July 1997FairGoodFairSatisfactory350055.6
September 1995FairGoodFairSatisfactory350055.7
September 1993FairVery GoodFairSatisfactory370055.3
April 1992FairGoodFairSatisfactory370026.4
October 1991PoorFairFairPoor410010.4