A panoramic view of the Taedong River in Pyongyang, North Korea, featuring multiple bridges, the Juche Tower, and the West Sea Barrage (Seohae Gapmun) in the distance, with an urban landscape under a clear blue sky.

North Korea’s Economic Collapse: Part 2 – West Sea Barrage

West Sea Barrage: How North Korea Wasted Billions on a Useless Dam

Today, we will discuss the second of North Korea’s three major blunders in the 1980s: the West Sea Barrage(Seohae Gapmun).
Please refer to the first post [here].
Let’s dive in right away!

Source: FM KOREA


The West Sea Barrage is a structure consisting of a 7 km long embankment and an 800-meter-long sluice gate, connecting Hwanghae Province and Nampo City. It serves both to block the Taedong River from the Yellow Sea and to act as a bridge connecting Hwanghae Province with Nampo.

A panoramic view of the Taedong River in Pyongyang, North Korea, featuring multiple bridges, the Juche Tower, and the West Sea Barrage (Seohae Gapmun) in the distance, with an urban landscape under a clear blue sky.
The Taedong River flows through Pyongyang, North Korea, with several bridges connecting the city. The Juche Tower stands prominently on the right, while the West Sea Barrage (Seohae Gapmun) can be seen in the distance, showcasing North Korea’s infrastructure and architectural landmarks

The primary purpose of constructing the West Sea Barrage was to increase the water supply in the Taedong River basin, securing water resources. In fact, it is said to have contributed significantly to water resource management.

“Doesn’t that make it a successful project?”

Let’s first address some of the relatively minor issues.

A North Korean propaganda poster promoting a 70-day campaign for economic and infrastructure development, including the construction and maintenance of the West Sea Barrage (Seohae Gapmun).
North Korean propaganda promoting industrial efforts and socialist achievements.

First, the West Sea Barrage was built using North Korea’s long-standing tradition of “People’s Army labor,” completed in just five years.

Visible cracks on a concrete surface, possibly related to structural weaknesses in the West Sea Barrage (Seohae Gapmun) due to rushed construction efforts.
Cracks appearing on concrete, highlighting potential construction flaws.

As expected, the hastily constructed sluice gate was far from flawless, and ultimately, the West Sea Barrage showed a surprising lack of durability, with gaps forming in the breakwater and water leaking through.

So, how did they fix it?

A portrait of Kim Il-sung, the founding leader of North Korea, who oversaw the construction of the West Sea Barrage (Seohae Gapmun) as part of major infrastructure projects.
Kim Il-sung, North Korea’s founding leader, played a key role in national infrastructure projects.

??: “How did we fix it? We just kept repairing it by putting more soldiers to work, hahaha!

If it ended there, we could just consider it another typical failure of North Korean speed-driven construction. However, I mentioned that this is a relatively minor issue, didn’t I?

In fact, the West Sea Barrage was a doomed project from the start.

In the mid-1970s…

A red map of the Soviet Union featuring the hammer and sickle symbol, representing communism's influence on North Korea's development, including projects like the West Sea Barrage (Seohae Gapmun).
The Soviet Union’s legacy and its ideological impact on North Korea.

“Hey, North Korea, don’t you think it’s a bad idea to take on this design? It seems like it’s going to be a huge loss, so I’ll just back out of the design.”

Initially, North Korea assigned the design of the West Sea Barrage to the Soviet Union.

However, after several large-scale natural development projects, the Soviets recognized the long-term environmental and economic repercussions of such endeavors and decided that the West Sea Barrage would ultimately be a loss.

Therefore, they withdrew from the design of the project.

But…

A portrait of Kim Jong-il, former leader of North Korea, who emphasized large-scale infrastructure projects like the West Sea Barrage (Seohae Gapmun) as part of the country's economic policies.
Kim Jong-il, the former Supreme Leader of North Korea, played a role in shaping the country’s infrastructure policies.

“Respected Comrade, the Soviets are refusing to design it because they’re worried about technology leakage. Should we go ahead and design it ourselves with Juche technology?”

North Korea’s overconfidence led Kim Jong-il to distort the Soviet’s advice, presenting false reports to Kim Il-sung.

A portrait of Kim Il-sung, the founding leader of North Korea, who oversaw the construction of the West Sea Barrage (Seohae Gapmun) as part of major infrastructure projects.
Kim Il-sung, North Korea’s founding leader, played a key role in national infrastructure projects.

“Alright, let’s proceed with the construction.”

Kim Il-sung accepted this report and insisted on continuing the project.

Once again, North Korea poured its national resources into the West Sea Barrage project. In a country with a GDP of $13 billion, North Korea spent a staggering $4 billion (30% of its GDP) on this one project.

An aerial view of the West Sea Barrage (Seohae Gapmun) in North Korea, a major infrastructure project designed to regulate water flow between the Taedong River and the Yellow Sea.
The West Sea Barrage (Seohae Gapmun), one of North Korea’s most ambitious infrastructure projects.

Anyway, after this insane expenditure, the West Sea Barrage did achieve its goal of securing water resources to some extent.

However, unforeseen (though anticipated by the Soviets, but ignored by North Korea) issues arose afterward.

North Korean fishermen navigating near the West Sea Barrage (Seohae Gapmun), illustrating the impact of the structure on local fisheries and marine life.
North Korean fishermen operating in waters affected by the West Sea Barrage.

First, the construction of the sluice gate caused changes in the surrounding ecosystem, leading to a significant decline in fishery production.

A portrait of Kim Il-sung, the founding leader of North Korea, who oversaw the construction of the West Sea Barrage (Seohae Gapmun) as part of major infrastructure projects.
Kim Il-sung, North Korea’s founding leader, played a key role in national infrastructure projects.

“Isn’t the sea bass soup here famous?

A bowl of pollack soup served in North Korea, where the West Sea Barrage (Seohae Gapmun) has influenced the availability of seafood in the region.
A traditional North Korean dish – pollack soup.

“This is pollack soup.”

The decline in fisheries was so severe that when Kim Il-sung visited a sea bass restaurant, they had to serve pollack soup from the East Sea because no sea bass was available.

Frozen waters near the West Sea Barrage (Seohae Gapmun), illustrating the impact of stagnant water flow on the surrounding environment and maritime transport.
Ice-covered waters causing navigation difficulties for ships.

Additionally, after the construction of the West Sea Barrage, the water flow became stagnant, causing the waters off Nampo to freeze every winter.

Furthermore, due to the presence of the sluice gate, ships had to wait for hours during half the day, significantly reducing the functionality of Nampo Port, which was supposed to serve as Pyongyang’s seaport.

Heavy fog in a region affected by the construction of the West Sea Barrage (Seohae Gapmun), which has influenced local climate patterns.
Dense fog covering the landscape, a frequently observed phenomenon in the area.

Though these issues might seem relatively minor compared to the others, the fog frequency in the region also increased.

Given all the problems with the barrage, there are even jokes circulating that the project was actually built to prevent South Korean special forces from infiltrating via the Taedong River.

In conclusion, the West Sea Barrage, along with the Vinalon factory, became one of the major contributors to North Korea’s economic downfall. If reunification happens, it’s likely that this structure will be dismantled.

Still, North Korea, unwilling to waste the $4 billion invested, continued to promote the project as a success. When foreign tourists visited, they would show them the West Sea Barrage, proudly claiming it as a demonstration of North Korea’s technological prowess—of course, with a healthy dose of exaggeration.

A North Korean tour guide explaining the significance of the West Sea Barrage (Seohae Gapmun), a major infrastructure project often presented as an achievement of national pride.
A North Korean guide promoting the importance of the West Sea Barrage.

Guide: “This West Sea Barrage represents the industrial success of our republic, showcasing our national status (and the country’s economic collapse). It also has a generator for power production (which it doesn’t).”


USER 1:
I thought Vinalon was the final blow to North Korea’s economy, but the Barrage isn’t any better, lol.
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USER 2:
Like father, like son, lol.
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USER 3:
Why are they so ridiculously incompetent, lol?
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USER 4:
Such large-scale projects are a means of forcing the people to work. It’s a way to waste time on useless things and take away their free time, preventing any possible coups or revolts.
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USER 5:
I heard that if they actually removed the West Sea Barrage, it wouldn’t cause any issues with the sea. Just like other big projects in North Korea, this was built by forcibly mobilizing people, including soldiers, to waste their time and stop them from doing anything else, in case they might stage a coup. It makes sense, because if they were really concerned about seawater flooding, they should have built practical embankments or barriers like in Hangang Park. Of course, they could have made a sluice, but they probably didn’t have the technology for that.
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USER 6:
30% of the GDP… is that even possible, lol?
👍 3 👎 0

USER 7:
I heard many people died while building this.
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Today we discussed the West Sea Barrage. It’s deeply upsetting to see how North Korea’s excessive self-confidence cost the lives of many innocent people. What are your thoughts on this issue? Let me know in the comments below.

In the next and final part of this series, we’ll explore an even more astonishing topic—stay tuned! Also, if there are any topics you’re interested in reading about, please leave a comment. Thanks for reading!

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