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NH 12 over BRANCH RIVER

Map

Coordinates:
+42.91850, -72.27475
42°55'07" N, 72°16'29" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:NH 12 over BRANCH RIVER
Structure number:013601380005600
Location:1.0 MI FROM KEENE CENTER
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:111.9 ft. [34.1 m]
Total length:117.1 ft. [35.7 m]
Roadway width between curbs:44.0 ft. [13.4 m]
Deck width edge-to-edge:64.6 ft. [19.7 m]
Skew angle:15°
Owner:City or Municipal Highway Agency [04]
Year built:1994
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 22.5 / HS 25 [9]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: July 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:19,000 [as of 2014]
Truck traffic:7% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
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: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:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:93.6
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
July 2017GoodGoodVery GoodVery Good1900093.6
July 2015GoodGoodVery GoodVery Good1900093.6
July 2013GoodGoodVery GoodVery Good1800093.8
July 2011GoodGoodVery GoodVery Good2100093.1
August 2010GoodGoodVery GoodVery Good2100093.1
January 2008GoodGoodVery GoodVery Good1800093.8
September 2006GoodGoodVery GoodVery Good1800093.8
January 2004GoodGoodVery GoodVery Good1800093.8
February 2002GoodGoodVery GoodVery Good1800093.8
February 2000GoodVery GoodVery GoodVery Good1800093.8
May 1998GoodVery GoodVery GoodVery Good1800093.8
March 1996GoodVery GoodVery GoodVery Good1800094.0
December 1994GoodExcellentExcellentExcellent2300092.8
November 1993PoorSeriousPoorPoor1710029.0
November 1992PoorSeriousPoorPoor1710029.0
October 1991PoorSeriousPoorPoor1710029.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.93572021500
Steel Protective Coatingsq. ft.100901000
Deck
Reinforced Concrete Decksq. ft.7,5467,16937700
Wearing Surfacessq. ft.100752500
Substructure
Reinforced Concrete Abutmentlinear ft.187181600
Joints
Strip Seal Jointlinear ft.6657900
Bearings
Movable Bearingeach86200
Steel Protective Coatingsq. ft.100100000
Fixed Bearingeach86200
Steel Protective Coatingsq. ft.100100000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.3353152000