Personal Flotation Devices (PFDs): A Canadian approved PFD is designed to keep you afloat in the water. PFDs were designed for use in recreational boating and are generally smaller, less bulky and more comfortable than lifejackets.
The Erie Canal, in New York state (shown below), was 360 mi (580 km) long, and connected New York with the Great Lakes via the Hudson River. Locks were built to overcome the 571-ft (174-m) difference between the level of the river and that of Lake Erie.
Nearly 80% of upstate New York's population lives within 25 miles of the Erie Canal. The Erie Canal's success was part of a Canal-building boom in New York in the 1820s. Between 1823 and 1828, several lateral Canals opened including the Champlain, the Oswego and the Cayuga-Seneca. Between 1835 and the turn of the century, this network of Canals was enlarged twice to accommodate heavier traffic.