November 21 - Inchcape Shipping Services (ISS) has advised that the Great Lakes - St Lawrence Seaway system will commence its closure period on December 1, 2014.

The system's closing schedule for the 2014 season is detailed in full here:

Mariners are advised that the detailed schedule may be subject to change if affected by severe weather.

The St Lawrence Seaway's navigation season generally extends from late March to late December.