do we know ....... I still remember fishing the flood waters below Sydneys warragamba dam 3 times during the late 80s early 90's ........ they decided to build a new spillway to protect the dam - you know what ? The dam has not spilled in one & a half decades!!!!! = even with all the rain Sydney had over the last couple of years - the capacity combined for all sydney dams were below 80%.
Can anyone tell me the last time wivenhoe spilled prior to this year ?
Chris