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![Not so smooth sailing on the St. Lawrence Seaway](/web/20061029183412im_/http://archives.cbc.ca/med/en/seaway/stlawrenceseaway_90_br_en.jpg )
The Seaway experiences one of its worst shipping seasons. (TV; runs 2:41) |
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![Attack of the zebra mussels](/web/20061029183412im_/http://archives.cbc.ca/med/en/seaway/stlawrenceseaway_130_br_en.jpg )
Billions of zebra mussels threaten the ecological balance of the St. Lawrence Seaway and the Great Lakes. (TV; runs 6:27) |
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![What ever happened to the St. Lawrence Seaway?](/web/20061029183412im_/http://archives.cbc.ca/med/en/seaway/stlawrenceseaway_100_br_en.jpg )
Thirty-three years after its completion, CBC examines the legacy of Seaway. (TV; runs 4:41) |