Ontario's Historical Plaques 


Discover Ontario's history as told through its plaques


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The Construction of the St. Lawrence Seaway

Construction of the St. Lawrence Seaway

Photo by contributors David & Kellie Clifford - Posted June, 2009

Construction of the St. Lawrence Seaway

Photo by contributor Richard Turcotte - Posted June, 2014

Construction of the St. Lawrence Seaway

Photo Source - Wikipedia

Plaque Location

The United Counties of Stormont, Dundas and Glengarry
The Township of South Dundas
In a park overlooking the Iroquois Lock
at the south end of Road 1 (Carman Road)
at the edge of a semi-circle
with a path leading to the parking area.


Coordinates: N 44 49.879 W 75 18.849

Map

Plaque Text

Impressive for its immense scale, organizational complexity, and speedy completion, the construction of the St. Lawrence Seaway from 1954 to 1959 was an outstanding engineering achievement. This project, which included hydroelectric power generation and water-level control, transformed shipping on the St. Lawrence River above Montréal by allowing ocean going vessels access to the Great Lakes. Acting in close cooperation, the Canadian and American governments coordinated the planning and construction needed to complete this remarkable undertaking on the world's longest inland waterway.

Related Ontario plaque
Lost Villages of the St. Lawrence

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Canals

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South Dundas Plaques




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