Ottawa (/ ˈ ɒ t ə w ə / (), / ˈ ɒ t ə w ɑː /; Canadian French pronunciation: ) is the capital city of Canada.Located on the south bank of the Ottawa River in the southern portion of the province of Ontario, Ottawa borders Gatineau, Quebec, and forms the core of the Ottawa–Gatineau census metropolitan area (CMA) and the National Capital Region (NCR). As of 2021, Ottawa had a city ...

Flooding. Ottawa has a history of flooding because of its location straddling the Marais Des Cygnes river. The area's first recorded flood was the Great Flood of 1844.In 1928, a flood crested at 38.65 feet and killed six people. Other flood years include 1904, when water crested at 36 feet and ran to a man's shoulders in the Santa Fe depot; 1909, cresting at 36.3 feet (11.1 m); 1915, …