Great Lakes tide and water level gauges

The tides, currents and water levels unit operates a permanent network of tide and water level gauging stations.

The network:

• includes:
  • 33 stations on the Great Lakes and connecting rivers
    Lake Superior
    • Thunder Bay
    • Michipicoten
    • Duluth
    • Marquette
    • Point Iroquois
    Lakes Michigan/Huron
    • Thessalon
    • Tobermory
    • Milwaukee
    • Ludington
    • Mackinaw City
    • Harbor Beach
    Lake St. Clair
    • Belle River and
    • St. Clair Shores
    Lake Erie
    • Port Stanley
    • Port Colborne
    • Toledo
    • Cleveland
    Lake Ontario
    • Port Weller
    • Toronto
    • Cobourg
    • Kingston
    • Rochester
    • Oswego
  • 1 additional tidal station on Hudson Bay at Churchill, Manitoba
• was established to provide the data required by the Canadian Hydrographic Service (CHS) for:
  • safety of navigation
  • hydrographic surveys
  • production of nautical charts and publications
• is equipped with SUTRON 8210™ Data Loggers, which record water level heights at 3 minute intervals using a float-counterweight driven encoder
  • data are transmitted via telephone on a daily basis to a central collection station at our Burlington, Ontario office