10/03/2011 05:09 EDT | Updated 12/02/2011 05:12 EST

Negotiations continue to avert strike today on St. Lawrence Seaway

ST. CATHARINES, Ont. - Negotiations to avert a strike that would shut down the St. Lawrence Seaway continue today.

Some 450 Canadian Auto Workers members are set walk off the job at noon.

CAW spokeswoman Shannon Devine says bargaining will continue right up until the strike deadline, if necessary.

The St. Lawrence Seaway Management Corp. has said that the Seaway will be closed, in an orderly manner, to all traffic if there is a strike.

The Seaway allows large freight ships to travel between the Atlantic Ocean and the five Great Lakes.

It serves some of the most important industrial cities in Canada and the U.S. and provides a route for the export of grain and other commodities.