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US 4,NH 16,SP TPK over NB RAMP

Map

Coordinates:
+43.07897, -70.78912
43°04'44" N, 70°47'21" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 4,NH 16,SP TPK over NB RAMP
Structure number:021701990013900
Location:N SP TPK I-95 INTERCHANGE
Purpose:Carries highway over highway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:140.1 ft. [42.7 m]
Total length:144.4 ft. [44.0 m]
Roadway width between curbs:40.4 ft. [12.3 m]
Deck width edge-to-edge:44.9 ft. [13.7 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:60°
Owner:State Toll Authority [31]
Year built:1971
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:MS 18+Mod / HS 20+Mod [6]
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: June 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:31,000 [as of 2013]
Truck traffic:8% of total traffic
Deck condition:Good [7 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:Better than present minimum criteria [7]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:97.3
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 2017GoodGoodGoodGood3100097.3
June 2015GoodGoodGoodGood3100097.3
June 2013GoodGoodGoodGood3050095.3
June 2011GoodGoodGoodGood3050095.0
May 2009GoodGoodGoodGood3100095.0
May 2007GoodGoodGoodGood2600095.0
April 2003GoodGoodGoodGood2400093.0
July 2001GoodGoodGoodGood2400093.0
May 1999GoodGoodGoodGood2400092.0
May 1997GoodGoodGoodGood2400092.0
April 1995GoodGoodVery GoodGood2400094.0
September 1993GoodGoodVery GoodGood4500094.0
May 1991GoodGoodVery GoodGood2390095.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.863743100200
Steel Protective Coatingsq. ft.100100000
Deck
Reinforced Concrete Decksq. ft.6,4806,04044000
Wearing Surfacessq. ft.10095500
Substructure
Reinforced Concrete Abutmentlinear ft.2401229100
Joints
Compression Jointlinear ft.1870016720
Bearings
Movable Bearingeach60600
Steel Protective Coatingsq. ft.100100000
Fixed Bearingeach60600
Steel Protective Coatingsq. ft.100100000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.302030200