What century were the Leiper Canal and Duluth Ship Canal built?
Leiper Canal Early in the 19th century, the Leiper Canal built in 1828-29 during the middle of the American canal age ran about 3 mi along Crum Creek in Delaware County to its mouth in Eastern Pennsylvania's Delaware Valley carrying its owners quarried products to docks on the Delaware River tidewater until 1852.
Canal Park, Duluth Canal Park is a tourist and recreation-oriented district of Duluth, Minnesota, United States. Situated across the Interstate 35 freeway from Downtown Duluth, it is connected by the famous Aerial Lift Bridge to the Park Point sandbar and neighborhood. Canal Park Drive and Lake Avenue South serve as the main routes in Canal Park.