Three buildings. According to the inquiry of Nanjing Demolition Office, Shangyuanmen River Crossing Passage is located in Jiangbei New District and Gulou District of Nanjing, and Xiaoshi New Village cannot be guaranteed due to disrepair. Therefore, the three buildings of Xiaoshi in Shangyuanmen Tunnel are demolished to ensure the safety of other residents. The construction of Shangyuanmen River-crossing Passage plays a very important role in connecting the main city and Jiangbei area. In the future, it will not only ease the pressure of railway vehicles crossing the river in Nanjing Station, but also connect with the future Nanjing North Station.