Beijing issued the flood warning for the first time. Which areas are at risk of difficult drainage?

Beijing issued a flood warning for the first time, and many places have the risk of difficult drainage. Let me tell you briefly.

Recently, the heavy rainfall in Beijing has reached a very serious level, which soon turned roads into rivers, which is very likely to cause floods in Beijing, and it is also easy to cause floods because of the difficulty in drainage in some places. However, in order to stop urban waterlogging, the local government began to verify the places with difficult drainage, and it is expected that these places with difficult drainage will be further changed to prevent waterlogging.

There will be drainage risks at Nangangwa of Beijing-Hong Kong-Macao Expressway, the intersection of Dongtucheng North and under various bridges. There are not many rivers that can be drained in Beijing, and the drainage capacity is limited. In case of heavy precipitation, water will accumulate in these places.

The water in Beijing moat such as Dongzhimenjiao, Zuo 'anmenkou, You 'anmenkou and Xizhimenjiao has started to rise. This moat connects nearly 100 sewers in Beijing. At present, during the period of heavy rainfall, because the moat rises, the water in the sewer will flow backwards, which will make the waterlogging in the city more serious and the drainage is really difficult.

The water accumulation in some bridge areas of the Second Ring Road is very serious. Nearly 70 areas such as Zhangyicun intersection, You 'anmen Bridge, south to north100m, Gujiazhuang Bridge North, Fifth Ring Cable-stayed Bridge, Dawakou Bridge and lianhua bridge will become waterlogged areas due to this rainfall. Generally speaking, the geomorphological features of Beijing still account for a large part, because it is a city built on the central and southern plains. In the eyes of professionals.

Well, this is my understanding of the difficulty of drainage in Beijing, because I don't know all the places in Beijing, and even many places can't remember their names, so it is still very difficult to say this. I also hope that this heavy rainfall will pass quickly, otherwise everyone in Beijing will be on tenterhooks.