The complex of fish protection facilities of the Bagaevsky hydroelectric complex on the Don River

Purpose: to develop a technical justification of fish protection structures arranged as part the Bagaevsky hydroelectric com-plex on Don River. Materials and methods. The research was based data science, topographic, hydraulic tech-nological conditions complex. methods scientific analysis technology search design were used in development security power plant. Results discussion. com-position, type, location parameters facilities complex have been estab-lished. A continuous fish-passing lock provides up 16-20 cycles attracting, accumulating locking per day. fish-spawning channel for passage with different swimming ability. Conditions recreation spawning rheophilic lithophilic species are formed its tract, phytophiles spawn ponds tract. Conclusions. 1. Tak-ing into account fish-breeding significance responsibility complex, solution creation fish. 2. adopted solutions construc-tion plant, gateway, meet modern requirements provide natural reproduction