Salt that was formerly flushed out to sea by the flood waters has been increasing the salinity of the soil. Measures to prevent the land from becoming useless are estimated would cost US $ 1 billion--the same as the original price of the dam.
這兒本是海水、淡水交融處，海水的鹽分會滲透到地裡，但因尼羅河每年泛濫，洪水將「撈過界」的海水沖刷出海，有若稀釋作用，三角洲就不會鹼化；自從水壩阻擋了洪水，海水無孔不入；如今埃及人的當務之急是如何使鹽鹼地還原。