Failure to capture Conquering the bridges intact , or to prevent Preventing_or_letting their demolition by the Germans , would leave GiveUp the British 6th Airborne Division cut off Dispersal from the rest of the Allied armies with their backs to the two waterways .

In the weeks prior to Hazel , Toronto had received Receiving copious amounts of rain , and the soil could not hold Defending as much as of rain ; consequently , over 90 % of it went into Toronto 's waterways .

In fact , following Hazel , residential development Cause_to_make_progress in areas along Toronto waterways was prohibited Preventing_or_letting , and they became Becoming parks instead .