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HWY EAST MAIN ST over WATER MERRIMACK RIVER

Map

Coordinates:
+42.81072, -70.99978
42°48'39" N, 70°59'59" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:HWY EAST MAIN ST over WATER MERRIMACK RIVER
Structure number:H12020311DOTNBI
Old structure number:427512000100 (from 1992 edition)
Location:AT WEST NEWBURY MERRIMAC
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:191.9 ft. [58.5 m]
Total length:812.0 ft. [247.5 m]
Roadway width between curbs:20.3 ft. [6.2 m]
Deck width edge-to-edge:21.0 ft. [6.4 m]
Vertical clearance above deck:12.8 ft. [3.9 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Owner:State Highway Agency [01]
Year built:1883
Year reconstructed:2013
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Movable - Swing [17]
Deck type:Other [9]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: November 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:6,334 [as of 2017]
Truck traffic:5% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Basically intolerable requiring high priority of corrrective action [3]
Channel protection:Bank protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Pier/abutment protection:In place and functioning [2]
Scour condition:Scour calculation/evaluation has not been made. [6]
Sufficiency rating:44.6

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2017FairSatisfactoryFairFair633444.6
November 2015FairGoodFairFair650044.5
December 2013FairGoodFairFair650053.8
July 2011PoorPoorPoorFair65000.0
July 2009PoorPoorPoorFair64800.0
May 1999PoorPoorFairFair620026.6
July 1994FairFairFairSatisfactory624021.2
July 1993PoorSeriousSeriousGood48980.0
July 1992PoorSeriousSeriousGood48980.0
January 1992PoorSeriousSeriousGood48982.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Stringerlinear ft.4,8334,833000
Steel Protective Coatingsq. ft.25,19725,197000
Steel Trusslinear ft.1,5741,312302320
Steel Protective Coatingsq. ft.50,53050,025151152202
Steel Floor Beamlinear ft.1,4501,28201680
Steel Protective Coatingsq. ft.14,98314,833553560
Steel Gusset Plateeach1681120560
Steel Protective Coatingsq. ft.672672000
Substructure
Masonry Pier Walllinear ft.2502183200
Masonry Abutmentlinear ft.68581000
Reinforced Concrete Pier Caplinear ft.111111000
Joints
Strip Seal Jointlinear ft.1191040150
Open Jointlinear ft.4343000
Bearings
Elastomeric Bearingeach2018110
Movable Bearingeach1414000
Steel Protective Coatingsq. ft.5656000
Fixed Bearingeach108020
Steel Protective Coatingsq. ft.4040000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,6111,608300
Steel Protective Coatingsq. ft.6,4446,444000
Deck
Other Material Decksq. ft.18,73818,62395200
Wearing Surfacessq. ft.18,73818,558100800