It created a lake called lake Nasser and it is 560km long.

ADVANTAGES	DISADVANTAGES
HEP Produced which allows the country to become more developed HEP station now provides half of the power in Egypt Irrigation for farmers - crops can be watered all year round More crops mean more food for the people of Egypt River doesn't get flooded anymore	Billharzia is now caused by snakes living in the lake The delta increases in size by 20 - 30 metres each year Because of this the land is less fertile Could harm fish in the sea