The highest water level in Yuhang, the Beijing Hangzhou Grand Canal in 16 years

The Beijing-Hangzhou Grand Canal is one of the world's longest, largest and oldest canals. From Beijing (Zhuo County) in the north, to Hangzhou (Yuhang) in the south, through Beijing, Tianjin and Hebei, Shandong, Jiangsu, Zhejiang four provinces, through the Haihe River, the Yellow River, the Huai River, the Yangtze River, the Qiantang River five major water systems, the total length of about 1794 kilometers, excavation has been more than 2500 years of history. The Beijing-Hangzhou Grand Canal is a great project created by the ancient Chinese working people, a precious material and spiritual wealth left to us by our ancestors, and an important human heritage that is alive and mobile.

The Grand Canal began in the Spring and Autumn Period, formed in the Sui Dynasty, developed in the Tang and Song Dynasties, the Beijing-Hangzhou Grand Canal was built in the Spring and Autumn Period more than 2,000 years ago, and has a history of 2,500 years, and Qin Shi Huang (Ying Zheng) dug an important river in Jiaxing, which also laid the direction of the Jiangnan Canal in the future. According to the record of the "Book of Yuejue", Qin Shi Huang "governed the waterway of the tomb from Jiaxing, went to Qiantang and crossed the land, and passed through Zhejiang". About 2,500 years ago, Wu Wangfu dug a ditch, opened a canal connecting the Yangtze River and the Huai River, and built Hancheng, from which the canal and canal culture were derived.

The Grand Canal we call today was excavated in the Spring and Autumn Period, completed in the Sui Dynasty, prospered in the Tang and Song dynasties, took the Yuan Dynasty, and dredged in the Ming and Qing dynasties (from 486 BC to 1293 AD when the whole line was opened), and lasted for a total of 1779 years. In the long years, it mainly underwent three major construction processes. In the Sui Dynasty, Emperor Yang of the Sui Dynasty mobilized more than 2 million people to dig through the Grand Canal, which made a great contribution to the unprecedented economic and cultural prosperity of the country in the future, the Sui Dynasty began to run through the whole line, through the development of the Tang and Song dynasties, and finally became the communication of the Haihe River, the Yellow River, the Huai River, the Yangtze River, the Qiantang River in the Yuan Dynasty, the five major water systems, through the north and the south.

Artificial Tianhe. The Beijing-Hangzhou Grand Canal is China's second "best waterway" after the Yangtze River. The value of the Great Wall is comparable to that of the earliest and longest man-made river in the world, 16 times that of the Suez Canal and 33 times that of the Panama Canal.

What is the 50-year flood level in Jiaxing?

The Beijing-Hangzhou Grand Canal has a maximum water depth of 10 meters, and the lowest is also a meter, with a total length of about 1,794 kilometers.

The channel from Tianjin to the four women's temple is narrow and crooked, the bottom width is 15 30 meters, the water depth is about 1 meter, and there are 4 locks of Yangliuqing, Duliu, North Chentun and Anling. The bottom of the Wei Canal is 30 meters wide, the water depth is about 10 meters, and there are four female temples and Zhugongtun locks, which can be navigated by 100-ton ships.

Lunan Canal, north from the Yellow River, south to Hanzhuang Jiansong, 20 kilometers long, although dredging in 1968, but the river is seriously silted, the water depth is insufficient, and it is not navigable. The section from Liangshan to Nanwang is long kilometers, and the water depth of the channel is meters in the dry season, and it can be navigated for 6 months a year, which is a seasonal waterway.

There may be some differences in the water depth of the Beijing-Hangzhou Grand Canal in the sliding cave section of the same hall, but on the whole, its average water depth is about 4-5 meters. The specific details can be analyzed in detail depending on the different sections of the canal.

The Beijing-Hangzhou Grand Canal is nearly 1,800 kilometers long, stretching from Tongzhou in Beijing to Hangzhou in Zhejiang. The canal was interrupted for hundreds of years, and the current canal is the product of restoration, which is already different from the original canal.

In the Qing Dynasty, the Beijing-Hangzhou Grand Canal was an important transportation artery of the country and an outstanding representative of water conservancy engineering technology. It not only played the role of transportation, but also provided an effective means for water irrigation and management in this area at that time.

It connects the five major water systems of Haihe River, Yellow River, Huai River, Yangtze River and Qiantang River.

The Beijing-Hangzhou Grand Canal is the world's longest mileage, the largest ancient canal, but also one of the oldest canals, and the Great Wall, Karez known as the three great projects in ancient China, and used so far, is a great project created by the ancient Chinese working people, is one of the symbols of China's cultural status.

The Grand Canal stretches from Yuhang (now Hangzhou) in the south to Zhuojun (now Beijing) in the north, passing through the four provinces of Zhejiang, Jiangsu, Shandong, Hebei and the cities of Tianjin and Beijing, with a total length of about 1,797 kilometers. The canal has played a huge role in the economic and cultural development and exchanges between the northern and southern regions of China, especially the development of the industrial and agricultural economy along the route.

From the south bank of the Yangtze River, Jianbikou passes through Danyang, Changzhou, Wuxi, Suzhou, Pingwang to Hangzhou. Among them, there are 3 routes from Pingwang to Hangzhou, namely the eastern, central and western routes, such as the east line, the total length of kilometers, most of the bottom width of 20 meters, the water depth of 2 meters, generally navigable 40 100 tons of ships, the annual cargo volume of more than 16 million tons.

The depth of the water also depends on whether it is in the rainy season or the dry season! During the rainy season in the Gangnam area, the water level rises very quickly! From the river, the water level is less than 1 meter away from the shore.

In the dry season, the surface of the water and the shore are about 2 meters. So the water level in the dry season can be between 3-5 meters. The rainy season is estimated to be around 5-7 meters.

In addition, the canals in the Gangnam area are regularly cleaned of silt. Keep the river clear!

Jump in, there's 50 of you as deep as that!

1.The Beijing-Hangzhou Grand Canal passes through the five major water systems of the Haihe River, the Yellow River, the Huai River, the Yangtze River and the Qiantang River.

2.The Beijing-Hangzhou Grand Canal can be divided into seven sections: Tonghui River, North Canal, South Canal, Lu Canal, Middle Canal, Li Canal, and Jiangnan Canal.

3.The Beijing-Hangzhou Canal has four nodes and two flow directions.

4.Node 1 is the Tonghui River and the North Canal north of Tianjin.

5.The South Canal and Lubei Canal between Node 1 and Node 2 Dongping Lake flow northward.

The Beijing-Hangzhou Grand Canal starts from Beijing in the north, reaches Hangzhou in the south, flows through Beijing, Tianjin, Hebei, Shandong, Jiangsu, Zhejiang six provinces and cities, and spans the Haihe River, Huangfeng River, Huai River, Yangtze River and Qiantang River, with a total length of 1,782 kilometers, making it the longest artificial river in the world.

The Beijing-Hangzhou Grand Canal has played a role in promoting the economic and cultural development and exchanges between the northern and southern regions of China, especially the development of the industrial and agricultural economy and the rise of cities and towns along the route. On June 22, 2014, the 38th session of the World Heritage Committee held in Doha officially approved the application for the nomination of the "Grand Canal" submitted by China to the World Heritage List, and the "Grand Canal" was officially inscribed on the World Heritage List as a cultural heritage.