72 1 What year was the flood?

The flood in Zhengzhou was July 20th, 20021year.

From 8: 00 to 17: 00 on July 20, 2002, there was heavy rain in Zhengzhou, with heavy rain in some areas. The maximum precipitation occurred in Jiangang Reservoir in Erqi District, accounting for 438.0 mm.. The continuous rainstorm in Zhengzhou, Henan Province attracted the attention of netizens. At 3: 00 a.m. on July 2 1 day, Henan Provincial Flood Control Department upgraded the emergency response level of flood control from Grade II to Grade I. ..

20021July 17 to 23, the disaster * * caused disasters in Henan Province 150 counties (cities, districts)147.86 million people, and 398 people died and disappeared due to the disaster, including 380 people in Zhengzhou, accounting for 95.5% of the province.

On the evening of July 20th, 2002/KLOC-0, Zhengzhou Meteorological Bureau collected and summarized the data of this rainstorm. On the 20th of Zhengzhou, from 16 to 17, the hourly rainfall reached 201.9mm; ; 19 from 20: 00 on September 9 to 20: 00 on the 20th, with a single-day rainfall of 552.5mm；; From 20: 00 on June 7 to 20: 00 on June 20, the rainfall for three days was 6 17. 1mm, which was equivalent to the amount in previous years.

Influence of Zhengzhou flood

On July 20th, 20021year, influenced by heavy rainfall, water curtain cave-like leakage occurred at the exit F of Dongshilipu subway station of Zhengzhou Metro Line 4 in Henan Province. Continuous heavy rainfall has caused serious water accumulation in some streets in Zhengzhou, affecting the lives of citizens. On July 20th, 20021year, the construction area of Zhengzhou Metro 12 line collapsed, and a large amount of water poured into the construction area. At the intersection of Ping 'an Avenue and Longzihu West Road, a crane fell into a ditch.

On July 20th, 20021year, Zhengzhou Huarun Gas said that due to the extreme weather of rainstorm, the road surface collapsed in Zhengzhou city and its surrounding areas, and gas supply was suspended in some areas. At about 2021July 20 18, the accumulated water rushed out of the entrance retaining wall and entered the main line section, causing the train of Zhengzhou Metro Line 5 to stop at Tanmiao Street Station and Shakou Road Station Tunnel.