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US 4,NH 16,TPK NB over LITTLE BAY,RD

Map

Coordinates:
+43.11831, -70.82569
43°07'06" N, 70°49'32" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 4,NH 16,TPK NB over LITTLE BAY,RD
Structure number:006502010002500
Location:DOVER-NEWINGTON T.L.
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:274.9 ft. [83.8 m]
Total length:1598.2 ft. [487.1 m]
Roadway width between curbs:71.5 ft. [21.8 m]
Deck width edge-to-edge:75.1 ft. [22.9 m]
Vertical clearance below bridge:42.7 ft. [13.0 m]
Owner:State Toll Authority [31]
Year built:1966
Year reconstructed:2018
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:9
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: July 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:34,891 [as of 2017]
Truck traffic:8% of total traffic
Deck condition:Excellent [9 out of 9]
Superstructure condition:Excellent [9 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:85.0
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 2018GoodExcellentExcellentVery Good3489185.0
April 2017FairFairGoodGood6689162.3
April 2015FairFairGoodGood6689162.3
April 2013FairFairGoodGood3326862.3
December 2011FairFairGoodGood3374562.3
October 2010FairFairGoodGood5038062.3
September 2008FairSatisfactoryGoodGood5038063.3
July 2007FairSatisfactoryGoodGood5038063.3
November 2004FairSatisfactoryGoodGood5038063.3
December 1999FairSatisfactoryGoodGood5038063.3
May 1997FairSatisfactoryGoodGood5038063.3
June 1995FairSatisfactoryGoodGood5038264.0
April 1994FairSatisfactoryGoodGood5038264.0
September 1991FairSatisfactoryVery GoodGood5371364.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.14,31014,310000
Deck
Reinforced Concrete Decksq. ft.119,300119,300000
Wearing Surfacessq. ft.100100000
Substructure
Reinforced Concrete Columneach3232000
Reinforced Concrete Pier Walllinear ft.416416000
Reinforced Concrete Abutmentlinear ft.240240000
Reinforced Concrete Pier Caplinear ft.510510000
Joints
Assembly with Sealeach151151000
Bearings
Elastomeric Bearingeach1818000
Pot Bearingeach7272000
Steel Protective Coatingsq. ft.100100000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,5981,598000
Reinforced Concrete Bridge Raillinear ft.1,5981,598000