We have shown that this work will have the immediate effect of adding... 6 million cubic meters to the summer irrigation passing through Khartoum. And the capacity, when necessary, to absorb the highest floods of the White Nile so that it can be passed to Egypt without danger. These... After deducting the water lost during the flood, it reaches... 40 million cubic meters at Aswan. Each feddan of the total area requires about... 10,000 cubic meters at Aswan for the months of March to June. Therefore, the additional available water will be sufficient for the reclamation or conversion of about 200,000 feddans, if only average years are considered. From this arises the following question: (Should the first plan for Egypt be to limit its cultivation to what can be guaranteed full irrigation in average years, or should it expose itself to the risk of failure by extending its cultivation as much as the available water in an average year allows?) If the plan of caution and prudence is chosen and limited to... 40 million (Aswan's annual yield) of its firm yield to cover the years... Then there remains only... 100,000 additional feddans for agricultural expansion. This amount does not guarantee summer water. For about... 100,000 feddans, because the period of shortage will be longer in such a case. And if the expansion increases beyond this amount, Egypt will require new yields from the Sudan region and what is stored in Lake Albert. As shown in Chapter VII, this dam will remain necessary because it will always be the only means to regulate the waters of the Sobat and other tributaries, and it will also be a balancing reservoir or an intermediate point between the major barrages and the Egyptian region. And other benefits of this construction and its place in the series of works that will ensure complete control of the Nile, as mentioned in Chapters IV and VI of Chapter III, where it is shown that this work is a fundamental link in the series of works mentioned, whether at present or in the future.