Merowe Dam A group calling itself the Nubian Liberation Front is threatening armed resistance in order to thwart the series of dams along the Nile, and particularly at Kajbar. The resettlement area is a vast area with an expected 50,000–70,000 inhabitants who would be going through a transitional period for a few years before the get acclimatised and psychologically adapted to their new life. Governing by the two eminent health impact experiences of New Halfa resettlement projects and Aswan Dam in Egypt, strategic health planning ought to start early to foresee what water born diseases and other ecological health problems (such as
Aswan Low Dam in the lower Nile. The dam, originally limited in height by conservation concerns, worked as designed, but provided inadequate storage capacity for planned development and was raised twice, between 1907 and 1912 and again in 1929–1933. These heightenings still did not meet irrigation demands and in 1946 it was nearly over-topped in an effort to maximize pool elevation. This led to the investigation and construction of the Aswan High Dam upstream. The earliest recorded attempt to build a dam near Aswan was in the 11th century, when the Arab polymath and engineer Ibn al-Haytham (known as "Alhazen" in the West)