Red River Floodway
From Wikipedia The Red River Floodway is an artificial flood control waterway in Western Canada, first used in 1969. It is a 47 km (29 mi) long channel which, during flood periods, takes part of the Red River's flow around the city of Winnipeg, Manitoba to the east and discharges it back into the Red River below the dam at Lockport. It can carry floodwater at a rate of up to 4,000 cubic metres (140,000 cubic feet) per second, expanded in the 2000s from its original channel capacity of 1,700 cubic metres (60,000 cubic feet). It was built partly in response to the disastrous 1950 Red River flood.