Soviet Union transferring floating docks from Black Sea to the Far East according to the Australia Station Intelligence Summary dated 1 July 1955

Sverdlov-class cruisers. ©Warshipsresearch.blogspot.com

An item reported that two Soviet reinforced concrete floating in four sections were underway from Kherson, Ukraine, Black Sea to what was believed Petropavlovsk, Kamtchatka. Dimensions estatimated to be 700 x 120 feet and should be able to lift Sverdlov-class cruisers. There were already three smaller docks available at Petropavlovsk. The transfer of the two larger docks indicated a possible stationing of those cruisers in the Pacific in 1955 and Petropavlovsk becoming a major naval base.

Source

Website Royal Australian Navy, Sea Power Centre.