Great Lakes – St Lawrence Seaway: 2013 Re-opening

Press Release
Sunday, February 17, 2013

Seaway Notice No.1, 2013, gives information on the opening of the 2013 navigation season and maximum allowable drafts.

The opening of the 2013 navigation season is scheduled to take place on the following dates and times:

  •  Montreal / Lake Ontario and the Welland Canal will open on March 22, 2013 at 0800 hours (D.S.T.).
  • Sault Ste. Marie Locks and Canals United States Soo Locks will open March 25.
  • Vessel transits will be subject to weather and ice conditions. Restrictions may apply in some areas until lighted navigation aids have been installed. 

In the Montreal / Lake Ontario Section
The draft will be 80.0 dm (26' 3") until the South Shore Canal is ice‐free or April 15th, whichever occurs first, at which time, if water levels are favorable, the draft will be increased to 80.8 dm (26' 6") for all vessels. In addition, there will be zero tolerance for ship's draft in excess of 80.8 dm (26' 6").

Mariners are reminded that for ships loaded to a draft greater than 80.0 dm (26' 3"), speeds will be monitored carefully between St. Lambert Lock and St. Nicolas Island.

In the Welland Canal
A maximum allowable draft of 80.8 dm (26' 6") will be in effect from the start of the navigation season for all vessels. In addition, there will be zero tolerance for vessel drafts in excess of 80.8 dm (26' 6'').

Please note that, for vessels loaded to a draft greater than 80.0 dm (26' 3"), speeds will be monitored carefully between the upper entrance to Lock 7 and former Bridge 12 in order to reduce bank erosion in this area.

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