BM - Great Trestle[Map · Street View] Lost Deck plate girder bridge over Souhegan River and NH-31 on B&M Greenville Branch Removed but not replaced Built 1908; Removed 1984
BM - Hillsborough Covered Bridge[Map] Lost Town lattice truss bridge over Contoocook River on Boston & Maine RR Destroyed by arsonists in 1985 Built 1903; Pier washed out 1938; Abandoned 1979; Destroyed 1985.
Castle Hill Road Bridge[Map] Wooden bridge over Beaver Brook on Castle Hill Road in Pelham Destroyed by severe weather Built 1920; rehabilitated 1973; closed indefinitely after damage from flooding in 2006; collapsed under weight of a blizzard in 2017
Clarkville Road Bridge[Map] Wooden bridge over South Branch Piscataquog River on Clarkville Road in Francestown Open to traffic Built 1930
Cohas Avenue Bridge[Map] Stone arch bridge over Cohas Brook on Cohas Avenue in Manchester Open to traffic Built 1900
Country Road Bridge[Map] Wooden bridge over H20 LOOM PND OUTLET on Country Road in New Ipswich Open to traffic Built 1920; rehabilitated 1960
County Farm Bridge[Map] Stone arch bridge over Whiting Brook on Old County Farm Road Open to traffic Built 1885 by the Ward Brothers
Thompson Crossing Bridge[Map] Pin connected Pratt through Truss over Contoocook River on abandonded section of Thompson Crossing road in Antrim Derelict/abandoned Built 1893 by Berlin Iron Bridge Co.; Abandoned 1976