The article is devoted to Alexey V. Lavrov, a graduate of the Leningrad Polytechnic Institute of 1926, a hydraulic engineer. Lavrov designed hydroelectric power stations and hydrotechnical constructions and conducted explorations on rivers of the North Caucasus, prepared a plan of its electrification, he went on the Caucasian complex expedition of the Council of the Academy of Sciences of the USSR for study of productive forces. He could not have escaped the political repressions of the 1930s.