in the toronto area, winds reached per hour and there was of rain in 48 hours. the humber river, located in the west end of the city, caused the most destruction, as a result of an intense flash flood. toronto's infrastructure took a heavy hit. not built to withstand serious flooding, as it is in a climate area that does not see exceptionally prolonged or heavy rainfall, over 50 bridges, many part of important highways, were heavily damaged or put out of commission, when high water itself washed them out or debris in the water smashed them. numerous roads and railways were also washed out. at the peak of the flooding, the don river's flow rate was . normally the don river flow is rising to during the spring.