China News Network, Hangzhou, July 11 (Jiang Yangye) On July 10, the Hongfeng Peak in the middle and upper reaches of the Qiantang River passed, and the flood entered Hangzhou. The reporter learned that the West Lake Water Management Office of Hangzhou West Lake Scenic Area has closed the West Lake diversion outlet on July 8. From July 8 to 10, the water level of the West Lake was 7.18 meters above sea level in the Yellow Sea, and the situation was normal.
As of 15 o'clock on July 9th, the Xin'anjiang Reservoir in Hangzhou, Zhejiang Province, has continued to discharge for more than 50 hours, with a total discharge of about 90 West Lakes. On the evening of the 10th, the Xin'anjiang Reservoir was still in flood discharge. The water of Xin'an River will also flow into Qiantang River.
The West Lake diversion of Qiantang River originated from the West Lake diversion project in 1986. By purifying the raw water of the Qiantang River, the quality of the water entering the lake is greatly improved.
The picture shows the West Lake Street arranged amphibious vehicles to pick up citizens. Photo courtesy of West Lake Street
Before the raw water of the Qiantang River enters the West Lake, it needs to undergo a series of purification treatments such as dosing, mixing, flocculation, and sedimentation in the pretreatment site, and then flows into the West Lake. According to relevant staff, the capacity of the West Lake Reservoir is 14.5 million cubic meters, and the annual diversion volume of the two pretreatment plants is 120 million cubic meters.
Recently, precipitation has suddenly increased. The reporter learned that the water management office of the West Lake Scenic Area had closed the diversion outlet on July 8. From July 8th to 10th, the water level of the West Lake was 7.18 meters above sea level in the Yellow Sea, and the situation was normal.
In the West Lake Scenic Area in Hangzhou, the civil aviation dormitory under the jurisdiction of Jiuxi Community of Xihu Street and Jiuxi New Village are adjacent to the outlet of the Qiantang River and backed by the mountains of West Lake. The terrain is relatively low. In the past, after entering the rainy season, continuous rainfall in the urban area of Hangzhou, the mountains and rivers gathered in Jiuxi, together with the upstream flood discharge, the water level of the Qiantang River rose, and the outlet of Jiuxi could not be drained normally. Especially during the morning and evening tide, it is very easy for river water to flow back into the drainage wells near Jiuxi and the community, and there will be water accumulation on the road surface and inside the residential area.
On the evening of July 6, after the Zhejiang Water Conservancy Department issued the No. 1 dispatch order of Xin'anjiang Reservoir, Xihu Sub-district and Jiuxi Community quickly carried out personnel transfers and arranged amphibious vehicles to pick up and drop off citizens. At present, there are no previous years in the Jiuxi community and residents' homes. The phenomenon of backflow of river water.
The Qianjiang Management Office of the West Lake Scenic Area reminds citizens and tourists to avoid wading and splashing while playing, and obey the advice of on-site staff to ensure personal safety. (Finish)