This article is within the scope of WikiProject Canada, a collaborative effort to improve the coverage of Canada on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
In a discussion of the locks yesterday with the lock master, he says the actual purpose isn't so much to regulate levels as it is to regulate current. The difference in the elevations between the lake and the sea would produce strong rapids and that is what the locks are to prevent. He says there was an incident a few years ago when one of the locks did not fully close. When the other lock opened, such a current flowed that it actually damaged the locks. Such conversations are not sources but perhaps there is a source somewhere to sort this out. --KenWalker | Talk 16:50, 10 November 2010 (UTC)