南水北调中线一期工程包括丹江口水库大坝加高工程、输水总干渠工程及汉江中下游工程3部分。丹江口水库大坝加高工程已于2005年9月开工建设,建成后蓄水位由157m提高到170m,库容由174．5亿m~3增加到290．5亿m~3。河南省新增淹没面积143km~2,涉及淅川县11个乡(镇),191个行政村,1238个村民组,直接淹没10．63万人,影响约5万多人,合计移民迁安约16万人,房屋2687万m~2。总干渠工程跨越江、淮、黄、海四大流域,沿线经过豫、冀、 The first phase of the South-to-North Water Diversion Project includes the Danjiangkou Reservoir Dam Elevation Project, the Main Water Channel Project and the middle and lower reaches of the Han River. The Danjiangkou Reservoir Dam Heightening Project was started construction in September 2005. After the completion of the project, the water level increased from 157m to 170m and the storage capacity increased from 17.45 billion m 3 to 29.05 billion m 3. The newly flooded area in Henan Province was 143km ~ 2, involving 11 townships (towns), 191 administrative villages and 1238 villagers groups in Xichuan County, directly inundating 106,300 people and affecting about 50,000 people, 16 million people, houses 26.87 million m ~ 2. The main canal project across the river, Huai, Huang, Hai four major river basins, along the Henan, Hebei,