Starting at 21:30 on July 11, on the premise of ensuring the safety of the downstream area, Huairou Reservoir opened the east spillway on the basis of opening the western spillway at 21:00 on July 9, and carried out orderly pre-discharge to the Huai River with a flow rate of 110 cubic meters per second, freeing up flood control storage capacity in advance to cope with this round of heavy rainfall. In order to ensure safety, the flood bridge section of South Street of County Highway 212 was temporarily closed during the drainage period, prohibiting vehicles and pedestrians.

Starting at 21:30 on July 11, on the premise of ensuring the safety of the downstream area, Huairou Reservoir opened the east spillway on the basis of opening the western spillway at 21:00 on July 9, and carried out orderly pre-discharge to the Huai River with a flow rate of 110 cubic meters per second, freeing up flood control storage capacity in advance to cope with this round of heavy rainfall. In order to ensure safety, the flood bridge section of South Street of County Highway 212 was temporarily closed during the drainage period, prohibiting vehicles and pedestrians.