North Korea's Hwanggang Dam, located upstream of the Imjin River, has a decisive influence on the water level of Gunnam Dam.

As it is only about 50 km away, the South Korean government has asked North Korea to notify North Korea of ​​the opening of the floodgates of Hwanggang Dam, but it is understood that North Korea ignored this and opened the floodgates a few days ago.

This content was covered by reporter Bae Jun-woo.


Hwanggang Dam is located 56km upstream of Imjin River from Gunnam Dam, and its water storage capacity is five times that of our Gunnam Dam.

When the floodgates of Hwanggang Dam are opened, the water level at Gunnam Dam rises significantly in just 3 to 4 hours.

The Ministry of Unification judged that North Korea recently opened the floodgates of the Hwanggang Dam, but an analysis of the data from the Han River Flood Control Center confirmed that the water inflow from the Gunnam Dam increased significantly from the day before (28th).

The water inflow of 958 tons per second surged to 3,005 tons per second from 6pm on the previous day.

The maximum inflow yesterday reached 3,651 tons per second, a fourfold increase in one day.

It is known that all 10 Hwanggang Dam floodgates have been opened.

The problem is that North Korea is repeatedly ignoring our demands to inform us about the opening of the floodgates in advance.

In 2009, when six residents of Yeoncheon-gun died due to the sudden increase in water from the Hwanggang Dam discharge, the North also agreed to give advance notice to the opening of the floodgates.

However, in May and June 2016, North Korea's unannounced discharge of the Hwanggang Dam caused significant flooding to the residents of the border area, and the Ministry of Unification again requested prior notice, but it was virtually ignored.

The Ministry of Unification today expressed regret to North Korea.

Heavy rain of up to 200 mm is forecast for the western part of North Korea that affects the Imjin River until tomorrow.

(Video editing: Kim Jong-mi, CG: Jeon Yu-geun)