West Milton Bridge, Steel girder bridge in West Milton, Vermont

The West Milton Bridge is a steel girder bridge carrying Bear Trap Road across the Lamoille River in West Milton, Vermont. It replaced a 1902 two-span Pennsylvania truss bridge, 329 feet long and 18 feet wide, whose trusses were moved to the Swanton Covered Railroad Bridge site.

The original bridge was built in 1902 as a Pennsylvania truss design manufactured by American Bridge Company and assembled on site by United Construction Company. It survived the devastating floods of 1927 before eventually being replaced with a modern steel structure.

The bridge's National Register listing rests on the 1902 Pennsylvania truss spans it replaced, not on the current steel girder. Those trusses, made by the American Bridge Company and erected by the United Construction Company of Albany, were moved to the Swanton Covered Railroad Bridge site on the Missisquoi River, burned in 1987, and now carry a multi-use trail.

The bridge is passable for vehicle traffic year-round and offers views of the Lamoille River toward Lake Champlain. It was designed to remain stable even during high water periods.

The 1902 trusses were not scrapped when the bridge was replaced: they were moved to the site of the Swanton Covered Railroad Bridge over the Missisquoi River, which burned in 1987, and now carry a multi-use trail. The American Bridge Company manufactured them and the United Construction Company of Albany assembled them.