International section of the High Technology Council of the People's Commissariat of Railway Transport (since 1918), is especially important to understand the processes of development of homeland hydrotechnical science and water transport. His scientific works are devoted to the construction of ports, bridges, and lighthouses, to improvement of the conditions of navigation on the large rivers of the country, to regulation of their beds with rapids. He was the first who pointed to the advantage of mechanical excavation in improving navigable conditions on large rivers. Since 1886, V .Ye. Timonov worked at the Office of Railway Transport, while at the same time taking up construction and administrative and teaching positions. V .Ye. Timonov carried out the first works on the laying of quay-piers from rock body in the Baltic Sea (1887), organized and conducted the first dredging work (1887), explored the mouths of the Dnipro, Don and Volga rivers (1890) and defined the branches of each river for the improvement of navigation, made a draft of the rapids' parts of the Dnipro and conducted research works on one of the thresholds (1894), researched the coasts of the Pacific ocean to select the location of the Pacific port of Siberian Railway and chose a place for this port (Vladyvostok), investigated the rivers of the Amur region and proposed measures to improve them (1895), etc. V .Ye. Timonov is the founder of the original direction in the construction industry, one of the founders of the doctrine of ports, the founder of the theory of the framework of hydraulic structures, the developer of the theory of port infrastructure,