evidence: For three quarters of a century much of North Korea’s trade with the outside world took place across a Japanese-built single-lane bridge across the Yalu River, connecting its city of Sinuiju with Dandong in Northeast China. Traffic would go in one direction in the morning, the opposite direction in the afternoon. [...] "North Korea began construction work on the road to the New Yalu River Bridge in mid-September last year, but had to put the project on hold in mid-January this year due to the Covid-19 pandemic," said Seoul-based DailyNK.