Douglas & Jarvis Patent Parabolic Truss Iron Bridge

The Douglas & Jarvis Patent Parabolic Truss Iron Bridge is a historic bridge across the Missisquoi River in Highgate, Vermont. Located at the end of Mill Hill Road, it is at 215 feet one of the longest bridges of its type in the northeastern United States. It was built in 1887, and was listed on the National Register of Historic Places in 1974.
The Douglas & Jarvis Patent Parabolic Truss Iron Bridge stands south of Highgate Falls village, at the end of Mill Hill Road, where it formerly crossed the Missisquoi River to meet Highgate Road . The bridge is oriented east-west across the river, just downstream the dam at Highgate Falls, and is open to pedestrian use. It is 215 feet long and is set on stone abutments. It is of a parabolic or lenticular truss design, with a secondary lenticular pony truss span at its southern end. The main trusses are supported by iron I-beam portal posts topped by decorative finials, and are joined to each other by a web of overhead iron rods.

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