Track-laying work of a cross-river railway bridge linking Tongjiang City in northeast China's Heilongjiang Province with Nizhneleninskoye in Russia was completed Tuesday morning.

The bridge, across the Heilongjiang River, started construction in February 2014. It is the first cross-river railway bridge between the two countries.

The main bridge spans 2,215 meters, with 1,886 meters of that standing in China. It has a designed annual throughput capacity of 21 million tonnes.

Both Chinese and Russian engineers and technicians had jointly conducted in-depth and detailed studies on the bridge and track design standards so that the bridge could meet the different demands of tracks of the two countries, said the China Railway Harbin Group Co., Ltd.

This bridge is expected to become a new westward Eurasian passway linking China and Russia, as well as Europe, which will be of great significance to promoting the high-quality development of economic and trade cooperation between the two countries.