The St. Lawrence Seaway (French: la Voie Maritime du Saint-Laurent) is a system of locks, canals, and channels in Canada and the United States that permits...

outstanding stock was purchased by the Saint Lawrence Seaway Authority (Canada) and the Saint Lawrence Seaway Development Corporation (U.S.) in 1957....

The St. Lawrence Seaway Management Corporation (SLSMC), formerly known as the St. Lawrence Seaway Authority, is a nonprofit Canadian Corporation established...

The Great Lakes St. Lawrence Seaway Development Corporation (GLS) is an agency of the United States Department of Transportation that operates and maintains...

Canada portal Gulf of St. Lawrence Estuary of St. Lawrence Lac Saint-Pierre Lachine Rapids RMS Empress of Ireland St. Lawrence Seaway NEPCO 140 Oil Spill Boldt...

was closed to traffic to be demolished. The construction of the Saint Lawrence Seaway in the 1950s required extensive modifications for all spans that...

150.8 ft) totaling 2.4 kilometres (1.5 mi) across the Saint Lawrence River and Saint Lawrence Seaway. The bridge is owned and operated by the Ogdensburg...

is located on the Saint Lawrence River between Lake Ontario and Montreal, Quebec. The lake forms part of the Saint Lawrence Seaway. The city of Salaberry-de-Valleyfield...

the Saint Lawrence River in Montreal, Quebec, Canada. It is immediately to the east of Saint Helen's Island and west of the Saint Lawrence Seaway and...

between 1954 and 1958 as part of the larger Saint Lawrence Seaway project, the dam created Lake St. Lawrence. Aside from providing significant amounts of...

highways that travel along the Saint Lawrence Seaway—specifically, Lake Erie, the Niagara River, Lake Ontario, and the Saint Lawrence River. It begins at the...

creation of the St. Lawrence Seaway in 1958. Families and businesses in Moulinette were moved to the new town of Long Sault before the seaway construction commenced...

American Great Lakes and the St. Lawrence Seaway from 1959, depicting the entire length beginning at the Gulf of Saint Lawrence in the east to the westernmost...

Cleveland is a port city, connected to the Atlantic Ocean via the Saint Lawrence Seaway. Its economy relies on diverse sectors that include higher education...

Cornwall, which were permanently submerged by the creation of the Saint Lawrence Seaway in 1958. The flooding was expected and planned for as the result...

outlet to the Atlantic Ocean via the Saint Lawrence River, comprising the western end of the Saint Lawrence Seaway. The Long Sault control dam, primarily...

other products from western Canada, through the Great Lakes and the Saint Lawrence Seaway, to the east coast. Forestry and manufacturing played important...

Pipeline and Hazardous Materials Safety Administration (PHMSA) Saint Lawrence Seaway Development Corporation (SLSDC) Research and Innovative Technology...

are the maximum size that can fit through the canal locks of the St. Lawrence Seaway, linking the inland Great Lakes of North America with the Atlantic...

Chicago has access to the Atlantic Ocean through the Great Lakes and Saint Lawrence Seaway and to the Gulf of Mexico from the Mississippi River via the Illinois...

natural lake. The Saint Lawrence River has some of the world's largest sustaining inland Atlantic ports. Since 1959, the Saint Lawrence Seaway has provided...

tanker owned and operated by Groupe Desgagnés for service on the Saint Lawrence Seaway. The ship was completed in March 2017. Damia Desgagnés is the first...

Dark Island, a prominent feature of the Saint Lawrence Seaway, is located in the lower (eastern) Thousand Islands region, near Chippewa Bay. It is a part...

the Gulf of Saint Lawrence and never recovered. Anticosti Island Atlantic Ocean Estuary of St. Lawrence Maritime Peninsula St. Lawrence Seaway "Atlantic...

Lake Saint-Louis is a lake in southwestern Quebec, Canada, at the confluence of the Saint Lawrence and Ottawa rivers. The Saint Lawrence Seaway passes...

run-of-the-river hydroelectric power station along the Saint Lawrence Seaway on the Saint Lawrence River, in Quebec, Canada. The station was built in three...

southwest, the Canadian border to the north, and Lake Ontario and the Saint Lawrence Seaway to the west. A mostly rural area, the North Country includes seven...

Welland Canal is a ship canal in Ontario, Canada, and part of the St. Lawrence Seaway and Great Lakes Waterway. The canal traverses the Niagara Peninsula...

geographic feature is Niagara Falls, part of the Niagara Escarpment. The Saint Lawrence Seaway allows navigation to and from the Atlantic Ocean as far inland as...

replaced by the St. Lawrence Seaway, which opened that year. The canal was finally closed to shipping in 1970. The opening of the Seaway and the decline of...