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NH 25A over CONNECTICUT RIVER

Map

Coordinates:
+43.90717, -72.13951
43°54'26" N, 72°08'22" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:NH 25A over CONNECTICUT RIVER
Structure number:020300620012400
Location:VERMONT STATE LINE
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:424.9 ft. [129.5 m]
Total length:433.7 ft. [132.2 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:25.6 ft. [7.8 m]
Vertical clearance above deck:14.4 ft. [4.4 m]
Owner:State Highway Agency [01]
Year built:1937
Year reconstructed:2002
Historic significance:Bridge is on the National Register of Historic Places [1]
Design load:M 13.5 / H 15 [2]
Main span material:Steel [3]
Main span design:Arch - Thru [12]
Deck type:Closed Grating [4]
Wearing surface:Bituminous [6]

Latest Available Inspection: June 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:3,808 [as of 2017]
Truck traffic:7% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
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 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]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:60.5
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$3,142,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2018FairGoodSatisfactoryGood380860.5
June 2016FairVery GoodSatisfactoryGood380069.8
November 2014FairVery GoodSatisfactoryGood390069.7
July 2013FairVery GoodSatisfactoryGood390069.7
July 2011FairVery GoodSatisfactoryGood390069.7
June 2009FairVery GoodSatisfactoryGood450064.5
May 2007FairVery GoodSatisfactoryGood420057.1
September 2003GoodVery GoodGoodGood380062.1
November 2002FairVery GoodSatisfactorySatisfactory380057.8
October 2001PoorPoorSeriousSerious39009.8
March 2001PoorPoorSeriousSerious39009.8
August 1999PoorPoorSeriousSerious39009.8
March 1999PoorPoorSeriousSerious39009.8
September 1997PoorPoorSeriousSerious39009.8
November 1996PoorSeriousSeriousSerious39007.8
November 1995PoorSeriousSeriousSerious39007.5
November 1994PoorSeriousSeriousSerious32007.5
November 1993PoorPoorSeriousSerious32009.5
November 1992PoorPoorSeriousSerious32009.5
October 1991PoorFairPoorSerious340011.5