The Russian 3.000 tons Volga barges according to a CIA report dating from the 1950s

An item referred to the publication Susa Novykh Tipoc dlya Bol’shoy Volgi, written by A.P. Strakhov, Moscow 1954 dealing with new kind of ships to serve on the Volga. The river channel would in the future be changed caused by constructing by hydroelectric power projects and corresponding attendant reservoirs. So in this manner were new types of river ships needed including dry-cargo open barges for cargoes of all categories built in series. There was in fact one hold open over the full length of the barge. To compensate the lacking of transverse bulkheads and to be used in reservoirs navigations was the hull fitted out with double bottoms and sides. Dimensions 85,0 (between perpendiculars) x 14,0 (moulded) x 4,2 (depth amidships) x 3,2 (mean loaded draught), 3.000 tons deadweight and a light displacement of 380 tons/meters.

Source
The report was published on www.archive.org, document number CIA-RDP81-00280R000200210013-9