Complex sentence: The 1950 flood reached a high of 30 ft (9.2 m) at Winnipeg--causing the largest evacuation in Canada's history of 100,000 people and $606 million CAD (1997) of damage, prompting the government of Manitoba to set up flood safety measures.
Split into simpler sentences: The 1950 flood reached a high of 30 ft (9.2 m) at Winnipeg--causing the largest evacuation in Canada's history of 100,000 people. An estimated $606 million CAD (1997) of damage resulted, prompting the government of Manitoba to set up flood safety measures.