The St. Lawrence Seaway Is Completed

Article abstract: The St. Lawrence River was tamed by a tremendous engineering effort that reduced it to a series of four lakes, making it navigable by most ocean vessels and harnessing its flow to produce hydroelectric power.

Summary of Event

The St. Lawrence River has provided access to the Great Lakes and the interior of the North American continent for centuries. Rapids and waterfalls impeded this access, but people traveling by canoe could carry their vessels and freight on portages around these obstacles. As boats grew larger, it became necessary...

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