Excerpted from Parks Canada’s Trent-Severn Waterway webpage:
➥ Parks Canada - BEFORE YOU CAST OFF
depths on the Trent-Severn Waterway are not guaranteed, so boaters must know their vessel dimensions and actual draught before planning a trip. Operators should also be aware that the draught of their vessel, when fully loaded and under power, in varied weather
conditions and in fresh (vs. salt) water, may differ considerably from its advertised draught.
Under normal conditions, there is approximately 2.4 m (8') of water in the navigation
channel from Lock #1 in Trenton to Lock #19 in Peterborough. Water depth
in the navigation
channel from above Lock #19 to Lock #45 in Port Severn, approximates 1.8 m (6').
Please note, however, that in a few places between Lock #19 and Lock #45, navigation channel water depth
may be less than 1.8 m (6'). The operator of any vessel drawing 1.5 m (5') or more, who is considering navigating the Waterway, should call 1-888-773-8888.
Water depth in a secondary navigation channel from Sturgeon Lake to Port Perry approximates 1.22 m (4'). Water depth in the Murray Canal, under normal conditions, is 2.7 m (9').