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HWY AIKEN ST over WATER MERRIMACK RIVER

Map

Coordinates:
+42.65473, -71.31540
42°39'17" N, 71°18'55" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:HWY AIKEN ST over WATER MERRIMACK RIVER
Structure number:L150202C0MUNNBI
Old structure number:2C0MUN426032100 (from 1992 edition)
Location:AT MERRIMACK RIVER
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:154.9 ft. [47.2 m]
Total length:779.9 ft. [237.7 m]
Roadway width between curbs:28.9 ft. [8.8 m]
Deck width edge-to-edge:51.2 ft. [15.6 m]
Vertical clearance above deck:15.7 ft. [4.8 m]
Owner:City or Municipal Highway Agency [04]
Year built:1883
Year reconstructed:1998
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:MS 18 / HS 20 [5]
Number of main spans:5
Main spans material:Aluminum, Wrought Iron or Cast Iron [9]
Main spans design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Other [9]

Latest Available Inspection: May 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:26,000 [as of 2016]
Truck traffic:3% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present minimum criteria [6]
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 is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:53.4
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$18,775,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2018FairGoodFairSatisfactory2600053.4
May 2016FairGoodFairSatisfactory2600053.4
May 2014FairGoodFairSatisfactory1340058.3
May 2012FairGoodSatisfactorySatisfactory1340069.8
May 2010FairGoodSatisfactorySatisfactory1340069.8
May 2008FairGoodSatisfactorySatisfactory1340069.8
May 2006FairVery GoodSatisfactorySatisfactory1120076.0
May 2004FairVery GoodSatisfactorySatisfactory1120076.0
May 2002FairVery GoodSatisfactorySatisfactory1540075.3
May 2000FairVery GoodSatisfactorySatisfactory1540075.3
July 1998FairVery GoodSatisfactoryGood1540075.3
June 1997Fair--Satisfactory136009.0
August 1993PoorSeriousSeriousSatisfactory136009.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Stringerlinear ft.10,0369,03201,0040
Steel Protective Coatingsq. ft.46,15745,44507120
Steel Trusslinear ft.1,5441,4608400
Steel Protective Coatingsq. ft.114,08096,96805,70411,408
Steel Floor Beamlinear ft.2,8232,661116460
Steel Protective Coatingsq. ft.27,26025,6631,1414560
Steel Pin or Pin & Hangar Assemblyeach200200000
Steel Protective Coatingsq. ft.880880000
Substructure
Masonry Pier Walllinear ft.203020300
Masonry Abutmentlinear ft.106106000
Deck
Concrete Filled Grid Decksq. ft.39,50439,504000
Wearing Surfacessq. ft.39,50429,62801,9757,901
Joints
Strip Seal Jointlinear ft.308308000
Bearings
Movable Bearingeach1010000
Steel Protective Coatingsq. ft.5050000
Fixed Bearingeach1010000
Steel Protective Coatingsq. ft.5050000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,5441,544000
Steel Protective Coatingsq. ft.6,1546,02500129