From this time drawbridges (moveable bridges that let ships pass through) on Neva and Malaya Neva rivers will be opened for a few hours during the night. Constant movement of ships will begin.
On the branches of the Neva it will begin a bit later, on 20th April. Final version of the opening schedule will be known soon. Not so long ago, the test opening of the city bridges was already started in preparation for the forthcoming navigation season.