Waterways management
National services
Levels of service
Objectives of the Waterways Program, services and standards for waterways and commercial shipping channels, including monitoring, maintenance and information on bottom conditions and water depth.
Safe waterways guidelines
Guidelines for design, maintenance, and safe use of commercial waterways and shipping channels.
Tides, currents and water levels
Predicted times and heights of high and low tides, as well as times and speeds of weak and strong currents.
Water Survey of Canada
Water resource data and hydrometric information from all of Canada’s lakes and rivers.
Navigational warnings (NAVWARNs)
Navigational warnings, shoal information, downloadable lists and enforced notices.
Notices to Mariners (NOTMAR)
Notices for updating charts and nautical references.
Canadian tide and current tables
Predicted times and heights of the high and low waters. Slack water times and maximum current times and velocities.
Regional services
Fraser River Avadepth system
Channel bottom conditions and forecasts of water depths for the main channels of the Fraser River.
Central region (St. Lawrence and Great lakes) publications
Water level forecasts for the St. Lawrence ship channel, channel bottom conditions, under-keel clearance table (St. Lawrence only).
Maintenance dredging services fees (St. Lawrence)
Rates, fee schedule, invoicing and payments for commercial vessels transiting the St. Lawrence ship channel.