Tongjiang (Chinese: 同江市; pinyin: Tóngjiāng Shì) is a city of 160,000 in eastern Heilongjiang province, People's Republic of China, located at the confluence and on the right banks of the Songhua and Amur Rivers, the latter which marks the border with Russia.

[citation needed] King Seon administrated their territories by creating a prefecture in the neighbourhood: The Hoiwon Prefecture [zh] (Korean: 회원부; Hanja: 懷遠府) with Dalju (Korean: 달주; Hanja: 達州), present-day Tongjiang, as its administrative centre.

[1] The Tongjiang-Nizhneleninskoye railway bridge was proposed in 2007 by Valery Solomonovich Gurevich, the vice-chairman of the Jewish Autonomous Oblast in Russia.

The railway bridge over the Amur River will connect Tongjiang with Nizhneleninskoye, a village in the Jewish Autonomous Oblast.

[11] Rostislav Goldstein, the current governor of the Jewish Autonomous Oblast, announced that he expected the bridge to be fully operational by August 20, 2022.

[11] 2 Formally part of Oroqen Banner in Inner Mongolia but administered de facto by Daxing'anling Prefecture in Heilongjiang.