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BYPASSED HISTORIC over MERRIMACK RIVER

This bridge is no longer in the current National Bridge Inventory database, and has likely been demolished or abandoned.

Map

Coordinates:
+43.09592, -71.46280
43°05'45" N, 71°27'46" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:BYPASSED HISTORIC over MERRIMACK RIVER
Structure number:012800830015000
Location:.28 MI.SE.NH.3-A
Route classification:Local (Rural) [09]
Length of largest span:170.0 ft. [51.8 m]
Total length:490.2 ft. [149.4 m]
Roadway width between curbs:18.7 ft. [5.7 m]
Deck width edge-to-edge:22.0 ft. [6.7 m]
Vertical clearance above deck:15.4 ft. [4.7 m]
Owner:City or Municipal Highway Agency [04]
Year built:1909
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:M 9 / H 10 [1]
Number of main spans:3
Main spans material:Steel [3]
Main spans design:Truss - Thru [10]
Deck type:Wood or Timber [8]
Wearing surface:Bituminous [6]

Latest Available Inspection: September 2009

Status:Bridge closed to all traffic [K]
Deck geometry appraisal:Unknown [*]
Water adequacy appraisal:Superior to present desirable criteria [9]
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 with "unknown" foundation that has not been evaluated for scour. [U]
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$2,500,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2009-----0.0
January 1999Fair--Fair-0.0