Upper Atbara and Setit Dam Complex for local agriculture, supplying potable water, and power generation. The project also aimed to increase agriculture production in the New Halfa area of Kassala currently irrigated by the Khashm el-Girba Dam, and the development of new land consisting of in Upper Atbara. Additionally, the dams are expected to provide flood-protection measures along the river banks by regulating the river flow in the project area. The total cost of the dam complex is estimated at $1.9 billion, of which $838 million for the construction of the dams is from the China Three Gorges Corporation (CTG) and its overseas project-contracting subsidiary, China
Three Gorges Reservoir Region narrow and where the geography is complex. The mountainous areas represent 74% of the region only with 4.3% plain area in the river valley and 21.7% hilly area. The climate of the reservoir region of the Three Gorges Project is the subtropical monsoon climate. Its location is in the transfer between the northern temperate zone and the subtropical zone, where it is hot and it rains a lot with the annual rainfall of about 1100 mm. The valley of the Three Gorges Reservoir Region below 500 m has an annual temperature 17–19 °C and, with the frost-free period annually lasts