The museum closed in July 2012 due to flooding damage from torrential rains and briefly reopened in September before closing for extensive repairs . Due to drainage problems , the museum was flooded in the summer of 2013 and 2015 and remained closed . In October 2015 , the Beijing Cultural Bureau announced extensive expansion for the museum . , no completion date had been given but the museum was expected to remain closed for several more years
from torrential rains
July 2012 Beijing flood
Dabaotai Western Han Dynasty Mausoleum