California 1 Highway collapsed in the rainstorm! What kind of disaster will the rainstorm bring?

According to local news reports in the United States, on October 28th, local time 1, the California1highway collapsed in the rainstorm. And affected by the continuous extreme weather, Monterey County, Northern California, USA suffered from heavy rainfall and triggered mudslides, forcing thousands of local residents to evacuate urgently.

According to the newly released UAV video, due to the continuous erosion of winter storms, the Dasur section of California 1 Highway was washed away by mudslides, and the road surface collapsed and slipped into the Pacific Ocean. The accident occurred about 72 kilometers (45 miles) south of Carmel on the big sur section of California 1 highway. The crack spanned the whole road and both lanes were destroyed.

Then, I can't help asking, what kind of disaster will rainstorm bring?

Rainstorm refers to the rainfall with hourly rainfall greater than 16 mm or continuous rainfall greater than 30 mm for 12 hours and rainfall greater than 50 mm for 24 hours. Rainstorm is often accompanied by strong winds.

1. Rainstorm caused by waterlogging is urgent and heavy. If it rains continuously for a long time because of heavy rain, the low-lying areas will be flooded and waterlogged due to poor drainage, resulting in waterlogging. At this time, the soil pores will be filled with rainwater, and the soil of terrestrial plants will be soaked in water for a long time, resulting in lack of oxygen in the roots and difficult normal metabolism of crops. This will cause crops to suffer and reduce production. It will cause waterlogging in the city and have a great impact on traffic safety. ?

Second, floods and heavy rains will cause landslides and mudslides in areas with unstable soil. At this time, it is necessary to evacuate the relevant personnel urgently. The triggered flash floods will lead to flooding, which will not only seriously harm agriculture, fruit trees, forestry and fisheries, but also destroy houses and infrastructure, and even cause casualties and serious economic losses. Pay special attention to drinking water after the rainstorm and flood. Because sewage may pollute people's domestic water and may cause related intestinal diseases. ?