History of the construction of the Tereble-Ritska Hydroelectric Power Plant based on data from the State Archives of the Zakarpattia Region

Abstract

The objective of this study is to analyze the historical, technical, and economic aspects of the construction of the Tereble-Rika Hydroelectric Power Station (HPP) in the Zakarpattia region of Ukraine. This facility represents a unique engineering project, initiated in the late 1940s and completed in 1956, designed to harness the energy potential of the Tereble and Rika rivers, which are characterized by significant altitude differences and relatively short distances between their upper courses. Understanding the development and implementation of this HPP provides insight into regional energy strategies, infrastructural planning, and socio-economic consequences of large-scale hydroengineering projects in the mid-20th century.

The research methodology is based on a thorough archival study, primarily utilizing materials from the Zakarpattia Regional State Archive, including fonds R-1097 and R-1914. A comprehensive analysis of construction documentation, financial records, technical specifications, and socio-administrative materials allowed for the reconstruction of the planning and execution stages of the HPP. Particular attention was paid to the organization of labor, procurement of materials, logistical challenges, and management of displaced populations, as well as to the technical parameters of hydraulic structures, turbines, and associated infrastructure.

Results indicate that the construction of the Tereble-Rika HPP involved significant challenges related to workforce shortages, limited availability of construction materials, and complex transportation conditions in mountainous terrain. The implementation required mobilization of specialists and resources from various regions of the Soviet Union and abroad. Despite these difficulties, the dam, tunnels, penstocks, and turbine facilities were successfully completed. The HPP employed over 2,000 workers at peak activity, utilized more than 420,000 m³ of concrete, and operated three turbines with a total nominal capacity of 27 MW. The associated settlement infrastructure included residential buildings, social and cultural facilities, and transport networks, which facilitated both construction and long-term operation.

In conclusion, the Tereble-Rika HPP project exemplifies a significant stage in the development of hydroelectric energy in Zakarpattia and demonstrates the interplay of engineering, economic, and social factors in the realization of large-scale infrastructure. The study highlights the importance of effective resource management, workforce organization, and logistical planning in overcoming natural and technical challenges. The findings contribute to the broader understanding of historical hydroengineering projects and provide lessons applicable to contemporary regional energy planning.