Various plans for the construction of the Kakhovska hydroelectric power station. Flooding of the pit of the navigable lock, the pit of the hydroelectric dam spillway. Overlapping the channel of the Dnieper River. Dump trucks are dumping rocky soil from the pontoon bridge and from the dam. The chief of construction, S. N. Andrianov, and civil engineers monitor the progress of work on the construction of the hydroelectric power station. Film director A. P. Dovzhenko talks with a construction engineer.