Historic Bridges of the U.S.

Connecticut River Bridge (Grafton County, New Hampshire)
Built 1929; rehabilitated 1993
Through truss bridge over Connecticut River on NH 25 in Piermont
Open to traffic

Glove Hollow Brook Bridge (Grafton County, New Hampshire)
Built 1900; rehabilitated 1970
Concrete arch bridge over Glove Hollow Brook on US 3/NH 25 in Plymouth
Open to traffic

Whittier Covered Bridge (Carroll County, New Hampshire)
Built 1870
Covered bridge over Bearcamp River on Old NH 25 in Ossipee
Open to pedestrians only