Warnings of worse rain for the rest of the week came on Wednesday as evacuation of 30 settlements was planned by the authorities.
At least 30,000 homes are hit by flooding in Amur region, with Vladimir Putin ordering more emergency aid to stricken people.
New rail bridge linking the two countries symbolizes closest-ever economic co-operation between neighbors.
The navigator, who served in the Navy of Peter the Great, gave his name to the Bering Strait, the Bering Sea, Bering Island, Bering Glacier and Bering Bridge.
Foreign Minister Sergey Lavrov backs easing of visa regimes in Asia-Pacific region for students and tourists.
The Russian government has ordered the evacuation of North Pole-40 Arctic Station.
Russian president warns that 'the work is going slowly' and calls for progress.
'Up to 30 million could move to Far East to receive enticing land gift': but will they?