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棉花滩水库大坝位于福建省永定县境内的汀江干流棉花滩峡谷河段中部,是以发电、防洪为主要功能的大型水库,属不完全年调节水库。坝址坐落在永定县西南端,距永定县城21千米,距厦门市246千米,下游1千米即是广东梅州地区,是国家“九五”计划重点工程。枢纽建筑物包括碾压混凝土重力坝、泄水建筑、输水发电建筑及航运过坝建筑等。拦河主坝为碾压混凝土重力坝,最大坝高113米,水库总库容20.35亿立方米,电站装机600兆瓦。坝址以上控制流域
Mianhuatan Reservoir Dam is located in the middle of the cotton river canyon reach in the main stream of Tingjiang River in Yongding County, Fujian Province. It is a large reservoir with power generation and flood control as its main functions, and is an imperfectly regulated reservoir. The dam site is located in the southwest of Yongding County, 21 kilometers away from Yongding County, 246 kilometers away from Xiamen City, and 1 kilometer downstream is Meizhou, Guangdong Province. It is a key project under the State’s Ninth Five-Year Plan. The hub buildings include RCC gravity dam, drainage construction, water transmission and power generation construction and shipping dam construction. Dam main dam RCC gravity dam, the maximum dam height of 113 meters, the total reservoir capacity of 2.035 billion cubic meters, power station installed capacity of 600 megawatts. Dam above the control basin