Russia says it will soon discuss with North Korea cooperation regarding infrastructure construction projects. 

Moscow's Minister for Development of the Far East, Alexander Kozlov, said in an interview with Russia’s Ria Novosti news agency that experts from the two countries will meet in the Far East region later this month over the matter.

It appears that they will specifically talk about building bridges over the Tumen River. 

North Korea’s Vice Minister of External Economic Affairs Ri Kwang-geun visited Russia in April and suggested to Acting Governor of the Primorye Territory Andrei Tarasenko that they advance efforts to jointly construct bridges over the river that runs along their shared borders.