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Chockstone Forum - General Discussion

General Climbing Discussion

Topic Date User
OT - Raising Warragamba 1-Mar-2013 At 1:44:42 PM lacto
Message
If it were for flood mitgation then that is what it would be used for , ie store the inflow from extreme rain whilst not dicharging to cause major flooding down stream , it would drop back to full supply as quckly as possible to enable the next flood to be mitigated . So effect on valley would probably be minimal as inundation would only be days or weeks at the most . As changing weather pattern is making extremes greater probably not a bad idea . Think what would have happened to Brisbane without the Wivenhoe dam going up from 100 % (water supply ) to 190% flood mitigation . The arguments there were the dam should have been well below 100 % before the flood and intial releases higher than they actually were but the dam certainly saved brisbane from a much bigger flood as at all times the releases were controlled according to the operating "rules "

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