WEST WARREN, MASSACHUSETTS
Gilbert Road - West Warren
The Gilbert Road Bridge in West Warren is the only surviving lenticular pony truss bridge that is still in service to carry vehicular traffic. The bridge is a 72 ft. span carrying Gilbert Road across the Quabog River and was constructed in 1889. The bridge is a five panel pin-connected design with a center vertical post height of 8 ft. The end posts are topped with a ball shaped finial and a simple lattice guard rail to give the bridge a slightly more ornate appearance, Like all the other pony truss bridges, the top chords and end posts are composed of a built-up open box section. The upper chord has a width of 14 in. and a depth of 7 ½ in. and is constructed from consisting of angles and plates. The lower chords consist of 1" x 3" eyebars. The verticals members are tapered built up members.