The first slab of the spillway dam is poured at the Bagaevsky hydroelectric complex

The construction of the Bagayevsky hydroelectric complex, a strategically important and one of the largest transportation infrastructure facilities in Southern Russia, continues in the Rostov Region. The Bagaevsky Hydroelectric Complex is designed to address the navigation bottleneck on the Lower Don, providing the necessary dimensions of the waterway.

As part of the construction works, the spillway dam, which is a reinforced concrete spillway with a wide threshold and a flat lifting and lowering gate, is being constructed. The dam has a total length of 307 meters and consists of 12 sections. Each of the sections is 35 by 24 meters. The dam is designed to pass floods and regulate navigational water discharges.

The first slab of the spillway dam required 2700 cubic meters of concrete mix and 34 hours of continuous pouring. Concrete treatment is arranged for a regulatory period of up to 19 days. A total of 32.4 thousand cubic meters will be poured for the construction of all sections. Inert materials for the concrete mixture, i.e. gravel, crushed stone, and sand, are supplied from different cities of Russia.

Reinforcement of the next sections of the dam is in progress. Works on the impervious blanket made of Larsen sheet piling have been completed at the base of the spillway dam.

Project background:

The Bagayevsky Hydroelectric Complex is the most important infrastructure project not only for Rostov Region, but also for the whole country. The hydroelectric complex under construction will be composed of a shipping lock with a central control room, upper and lower approach channels with mooring-guiding structures, a spillway and earth fill dam, a meandering fish bypass and spawning channel and a fish passage lock, industrial, service, engineering and auxiliary facilities, and housing for operating personnel. To ensure the navigation safety, channel-regulating dams are being constructed, as well as shore protection dams that will prevent the development of bank erosion processes (washout and collapse), protect from the impact of ship waves and reduce the negative impact of waters on the population living in these areas. In order to ensure guaranteed waterway dimensions (depth – 4 m, width – 80 m, bending radius – 500 m) in the section from the Kochetovsky Hydroelectric Complex site at km 3004.5 of the waterway of the Integrated Deep Water System (IDWS) to the Bagaevsky Hydroelectric Complex site at km 3089 of the IDWS waterway, dredging and river cut-off are envisaged.