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19 prived of this storage the discharge ... ill naturally in- creased... That is, if all the water were allowed to spill that arrived at the dam during a flood, the flow would be advanced in time and also slightly increased in peak... In order to obviate this condition ... Iltorage lIIuSt be provided ... over and above the norms.l operating pool level ... The amount of this storage necessary to be provided mq be taken approxill\lltely equal to the natural storage displaced ..." What has TVA done about this situation? In order to get the minimum head for operation of the generating units, 7,300,000 acre feet have been devoted to dead storage, of no use whatever in preventing floods. On the contrary, this dead storage destroys forever almost all many acre feet of natural valley storage. Of control+able and unCOQ- trollable storage, TVA has a total ofl 1. About 9,000,000 acre feet in the drawdowns that T\TA plans to use for both power and flood control on the pulldown ahead of a flood basis as described above. 2. About 4,500,000 acre feet now devoted to power only. After the war TVA S8YS that it is going to convert about 4,300,000 acre feet of this to joint power and flood control use on the basis described in (1) above. 3. About 4,700,000 acre feet in the so-called surcharge space above the top of the gates, mostly at the main river dams and which evidently is intended, among other things, to replace pert of the natural valley storage during great floods. FrOIl these figures it seems evident that under the most favor- able circumstances TVA has not fully replaced the natural channel stor- age it will displace during great floods, and that if' it fails in realiz- ing perfect management of the joint spece, serious results are certain when a big flood cOllies along. As a practical matter, the big lakes on the main stem of the river will tend to speed up and increase the crest heights of floods