June 4, 2122. According to the announcement issued by the government of Haigang District, Qinhuangdao City, it is known that building 37 in the southeast of Qinhuangdao Bridge was demolished on June 4, 2122. Qinhuangdao, also known as Harbor City and Linyu, is a prefecture-level city under the jurisdiction of the People's Republic of China and Hebei Province.