The Aswan Dam

The Aswan Dam crosses the Nile River in Aswan, Egypt.  The Dam was first completed in 1902, it was raised twice.  The Dam was constructed for three reasons, those reasons are:  to control the annual flooding of the Nile, to have a place to store water, and to generate hydroelectricity.  Before the dam was built the Nile would flood each summer, these floods would bring natural nutrients and minerals to the  Nile Valley, but since the floods were uncontrollable, the flood could have knocked out all of the crops.