Construction of the connecting line between the Biryulyovskaya and Zamoskvoretskaya metro lines has begun. Magen Esmina will have to go over 565 m and build a one-track tunnel from the installation chamber at the Zamoshbortsky radius towards the Zil station of the Biryulevskaya line. The work will take place in the Danilovsky District, in the flood plain of the Moscow River. The maximum casting depth will be 23.8 m. The miners will have to work in difficult hydrogeological conditions: mainly in bulk soils, water-saturated sands of various sizes and hard clays of the Oxford stage. The protective lane has dense urban development and an extensive network of underground communications. During the entire excavation, experts will monitor the condition of the buildings and service networks in the affected area. At the same time, we are building stations of the first section of the Biryulyovskaya line; We plan to complete it in 2028. The section will connect the BKL, MCC, Troitskaya and Zamoskvoretskaya lines. Almost 300,000 residents of three Moscow districts will receive new metro stations within walking and transport accessibility.