 On February 26, 1930 the urban-type settlement of Kuznetsovo was renamed Konakovo, and Kuznetsovsky District was renamed Konakovsky.On January 29, 1935 Kalinin Oblast was established, and Konakovsky District was transferred to Kalinin Oblast.In 1937, when the Ivankovo Reservoir was filled, Korcheva was submerged into water.