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NH 12,NH103 over CONNECTICUT RIVER

Map

Coordinates:
+43.40299, -72.40009
43°24'11" N, 72°24'00" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:NH 12,NH103 over CONNECTICUT RIVER
Structure number:004700650013400
Location:NH VT SL
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:180.1 ft. [54.9 m]
Total length:678.2 ft. [206.7 m]
Roadway width between curbs:44.0 ft. [13.4 m]
Deck width edge-to-edge:48.2 ft. [14.7 m]
Owner:State Highway Agency [01]
Year built:1969
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:MS 18 / HS 20 [5]
Number of main spans:4
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: August 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:9,480 [as of 2016]
Truck traffic:7% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:81.8
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
August 2017FairFairGoodGood948081.8
June 2015FairFairGoodVery Good863982.9
June 2013FairFairGoodVery Good895982.4
June 2011FairFairGoodVery Good921082.0
August 2009FairFairGoodVery Good907882.2
June 2007FairFairGoodVery Good910082.2
April 2003FairSatisfactoryGoodVery Good922983.2
June 2001FairSatisfactoryVery GoodVery Good850084.1
August 1997FairSatisfactoryVery GoodVery Good850084.1
May 1995GoodGoodVery GoodVery Good849684.2
May 1993GoodVery GoodVery GoodVery Good798484.8
October 1991GoodGoodVery GoodGood744577.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.4,0452,7491,214820
Steel Protective Coatingsq. ft.100100000
Deck
Reinforced Concrete Decksq. ft.32,48518,8411,62412,0200
Wearing Surfacessq. ft.10095500
Substructure
Reinforced Concrete Pier Walllinear ft.144144000
Reinforced Concrete Abutmentlinear ft.144141300
Joints
Assembly with Sealeach95851000
Open Jointlinear ft.9509500
Bearings
Movable Bearingeach24121200
Steel Protective Coatingsq. ft.100752500
Fixed Bearingeach66000
Steel Protective Coatingsq. ft.100100000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,4471,447000