The Piermont Bridge carries New Hampshire Route 25 over the

Connecticut River The Connecticut River is the longest river in the New England region of the United States, flowing roughly southward for through four states. It rises 300 yards (270 m) south of the U.S. border with Quebec, Canada, and discharges at Long Island ...

to the contiguous Vermont Route 25 between Piermont, New Hampshire and

Bradford, Vermont Bradford is a town in Orange County, Vermont, United States. The population was 2,790 at the 2020 census. Bradford is located on the county's eastern border, bordering both the Connecticut River and New Hampshire, and is a commercial center for ...

. It is a Pennsylvania steel through truss bridge, built by the

Boston Bridge Works Boston Bridge Works (also known as Boston Bridge Works, Inc.) was an engineering firm, building bridges throughout New England, during the late nineteenth and early twentieth centuries. Operating out of Boston, they specialized in the drafting ...

in 1928. The bridge consists of a single span with a clear span of 352' and an overall length of 354'10". The roadbed is 20'7" wide, with a vertical clearance of 14'7". The bridge is approximately 25' above the river. The western (Vermont) abutment is made of split granite quarried from nearby Fairlee Mountain, while the eastern abutment is an early concrete construction built in 1908 by John Storrs for an earlier bridge. The bridge underwent a major renovation in 1993 which included the addition of a sidewalk (under which utilities were laid) and replacement of much of the bridge decking. The bridge was built in the aftermath of major rain and flooding in 1927 along the Connecticut River, which washed away several bridges and caused significant damage in Vermont. The Piermont Bridge was the longest bridge built after this flooding, replacing a c. 1875 two-span Town lattice truss bridge. The center pier of the older bridge was knocked down to the water line and is still visible. The eastern abutment, built in 1908 in a relatively early use of structural concrete, needed to be strengthened to accommodate the increased weight of the new steel bridge. This was accomplished by adding new concrete to the land side of the abutment, preserving the earlier work. The bridge was listed on the National Register of Historic Places in 2001. It is owned by the states of New Hampshire (90%) and Vermont (10%).

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{{Connecticut River Road bridges on the National Register of Historic Places in New Hampshire Road bridges on the National Register of Historic Places in Vermont Bridges completed in 1928 Bridges in Grafton County, New Hampshire Bridges in Orange County, Vermont 1928 establishments in Vermont National Register of Historic Places in Grafton County, New Hampshire Steel bridges in the United States Pennsylvania truss bridges in the United States 1928 establishments in New Hampshire Bridges over the Connecticut River Buildings and structures in Bradford, Vermont Interstate vehicle bridges in the United States

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