The Great Lakes-St. Lawrence Seaway System issued a News Release stating that the 47 th navigation season for the St. Lawrence Seaway closed
on December 29 with passage of the tanker Maria Desgagnes though the St. Lambert Lock. The seaway was open for 280 days during 2005. Maintenance and upgrades will be undertaken during the winter. The seaway is expected to re-open in late March.
Source: HK Law