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The flood peak has passed the Nanjing and Wuhan sections of the Yangtze River in eastern and central China.
Despite torrential rain easing along the river, the Yangtze's middle and lower reaches remain vulnerable to further flooding.
The Nanjing section of the Yangtze River in Jiangsu province has seen water levels linger above the danger mark since July 12th.
On Thursday morning, the flood peak passed the Nanjing section, causing water levels to surge sharply.
Authorities surveyed a nearby dyke to ensure it could withstand the flood peak.
Qian Haifeng, Official Yangtze Waterway Admmin., Nanjing, said, "We have been closely monitoring the water level over the past few days. The statistics have also been passed on to the local flood control headquarter."
The flood peak reached the Yangtze's Wuhan section in central China's Hubei Province at 8am Friday, triggering the water level to peak at 27 meters.
The section's water level is predicted to rise higher and exceed the danger mark on Saturday.
Authorities have responded by ordering ships to return to harbor and local residents to stay indoors.
Vessels resumed passing through the Three Gorges Dam on Thursday afternoon, when water flow fell by 35 percent to about 45-thousand cubic meters per second.
A large convoy of ships is now slowly passing through the dam under the supervision of authorities.
The Three Gorges Dam has blocked more than 7 billion cubic meters of waters to date, helping reduce the flooding in the middle and lower reaches of the Yangtze River.