US 4

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3rd Street Poesten Kill Bridge (Rensselaer County, New York)
Built 1875; rehabilitated 1998
Stone arch bridge over Poesten Kill on Southbound US 4 in Troy
Open to traffic

Champlain Canal Bridge (Washington County, New York)
Built 1933; rehabilitated 1981
Through truss bridge over Champlain Canal on US 4 in Whitehall
Open to traffic

Little Bay Bridge (Strafford County, New Hampshire)
Built 1966 as replacement for General Sullivan Bridge; extensively rehabiliated and rebuilt 2018
Steel stringer bridge over Little Bay Inlet (Piscataqua River) on Spaulding Turnpike
Open to traffic

Northern Rail Trail - US-4 Overpass (Merrimack County, New Hampshire)
Built 1937 Recon 1986
1937 Pony plate girder over B&MRR/Northern Rail Trail on US-4
Open to traffic

Northumberland Bridge (Saratoga County, New York)
Built 1917 by Fort Pitt Bridge Works; rehabilitated 1973
Warren through truss bridge over Hudson River on US 4
Open to traffic

Quechee Gorge Bridge (Windsor County, Vermont)
Built 1911; Abandoned & converted to roadway use 1933; Rehabilitated 1989
Steel arch bridge over Ottauquechee River on US 4 in Hartford
Open to traffic

Schuyler Creek Bridge (Saratoga County, New York)
Built 1885
Stone arch bridge over Schuyler Creek on US 4 in Stillwater
Open to traffic

ST - Hudson River Bridge (Saratoga County, New York)
Built 1914
Warren deck truss bridge over Hudson River and US 4 on Springfield Terminal Railway
Open to traffic

Union Bridge (1909) (Saratoga County, New York)
Built 1909; rehabilitated 1985
Through truss bridge over Hudson River on Broad St/126th St/US-4
Open to traffic

US 4 Bridge (Grafton County, New Hampshire)
Built 1940; replaced 1993
Lost Pratt through truss bridge over Mascoma River on US 4
Replaced by new bridge

WACR - Maple Street Bridge (Windsor County, Vermont)
Steel stringer bridge over Maple Street / US 4 on Washington County Railroad
Open to traffic

West Lebanon-Hartford Bridge (Grafton County, New Hampshire)
Built 1936; rehabilitated 1976
Through truss bridge over Connecticut River on US 4 in Lebanon
Replaced by a new bridge

Wynants Kill Bridge (Rensselaer County, New York)
Built 1934
Concrete arch bridge over Wynants Kill on US 4 in Troy
Open to traffic