Rideau Canal
| Rideau Canal | |
|---|---|
|
Native names English: Rideau Canal French: Canal Rideau |
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Locks in summer
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| Area | Ontario |
| Built | 1832 |
| Architect | John By |
| Governing body | Parks Canada |
| Type | Cultural |
| Criteria | i, iv |
| Designated | 2007 (31st session) |
| Reference no. | 1221 |
| State Party |
 Canada
|
| Region | Europe and North America |
| Designated | 1925 |
| Canadian Heritage River | 2000 |
The Rideau Canal, also known unofficially as the Rideau Waterway, connects the city of Ottawa, Ontario, Canada, on the Ottawa River to the city of Kingston, Ontario, on Lake Ontario. It is 202 kilometres in length. The name Rideau, French for "curtain," is derived from the curtain-like appearance of the Rideau River's twin waterfalls where they join the Ottawa River. The canal system uses sections of two rivers, the Rideau and the Cataraqui, as well as several lakes. The Rideau Canal is operated by Parks Canada.
The canal was opened in 1832 as a precaution in case of war with the United States. It remains in use today primarily for pleasure boating, with most of its original structures intact, operated by Parks Canada. The locks on the system open for navigation in mid-May and close in mid-October. It is the oldest continuously operated canal system in North America, and in 2007 it was registered as a UNESCO World Heritage Site.
The construction of the Rideau Canal was a preventive military measure undertaken after a report that during the War of 1812 the United States had intended to invade the British colony of Upper Canada via the St. Lawrence River, which would have severed the lifeline between Montreal and Kingston. The British built a number of other canals (Grenville, Chute-à-Blondeau and Carillon Canals, all along the Ottawa River) as well as a number of forts (Citadel Hill, La Citadelle, and Fort Henry) to impede and deter any future American invasions of Canadian territory.
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