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Customer Advisories 2011

Update - Draught Information System

In January 2011, the St. Lawrence Seaway Corporations issued a Customer Advisory regarding their plans to develop a Draught Information System to increase the safety of navigation by providing the mariner with better information about under-keel clearance.  An Implementation Specification for the Draught Information System was developed during the 2011 winter and, following a public comment period, it was published on March 16th, 2011. 

As per the Customer Advisory issued on July 6th, 2011, the St. Lawrence Seaway Corporations have posted the proposed revisions to the Implementation Specification on the Seaway web site.  Comments may be submitted by email to or to St. Lawrence Seaway Management Corporation (Attention: L. Lefebvre) or to the Saint Lawrence Seaway Development Corporation (Attention: T. Lavigne).  All comments must be received on the ‘Comments Form’ posted on the Seaway website no later than August 12th, 2011.


July 13, 2011