Hemlock Bridge, built in 1857, is a 109 foot Paddleford truss strengthened with laminated wooden arches. It was built on granite abutments since it was located in a floodplain.
The bridge was reinforced to carry local traffic in 1988. Hemlock Bridge was designated as a Maine Historic Civil Engineering Landmark by the American Society of Civil Engineers in 2002.
It is located three miles northwest of East Fryeburg over an old channel of the Saco River.