Xidayang Reservoir (), also known as Xidayang Shuiku or West Dayang Reservoir, is a large-scale reservoir located in Baoshui Township, Tang County, Baoding City, Hebei Province, China.
West Dayang Reservoir was designed by the Design Institute of Hebei Provincial Water Resources Department (æ²³åÂÂçÂÂæ°´å©å 设计é¢), its construction began in 1958 and was completed in 1960. In August 1970, the continued construction of the reservoir was completed.
In 2005, Xidayang Reservoir's consolidating and de-danger engineering (é¤é©å åº工ç¨Â) started, with a total investment of 198 million yuan and a construction period of 36 months.
In 2008, the connection project between Xidayang Reservoir and Wangkuai Reservoir was started, and in 2012, the connection project was completed.