Analysis of drainage and rain intensity to solve the flood problem in Tashkent

Introduction. Tashkent is one of the largest ancient cities in Central Asia and the capital of the Republic of Uzbekistan, as well. It is one of the largest industrial-transport crossroads and cultural centers of Central Asia. The city is located in the middle of the Chirchik River Valley, which flows between the Korjantov, Ugom, Piskom, Koksuv, and Chatkal ridges of Western Tianshan, in the low-lying foothills on the right bank of the river, 41° north latitude, 69° east. With an area of 0.34 thousand km2, the population as of October 1, 2018, is 2497.9 thousand people [2]. The city is developing a strong infrastructure and human activity in the area is increasing. As floods have become more frequent in recent times, this situation is of concern to the public. The floods caused by heavy rains in April 2019 clearly showed that there were problems with the drainage system in Tashkent. Prompt resolution of problems in the drainage system is an urgent issue facing the city administration. The Decree of the President of the Republic of Uzbekistan, dated 01.06.2017, PF-5066 "On measures to radically increase the effectiveness of the system of prevention and response to emergencies." also mentions this issue.