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PLAYIO_VETERANLv.102

pieceee

Yeouido used to be a sandy plain that disappeared whenever it rained

Did you know that the Yeouido where the National Assembly and 63 Building now stand was a sandy plain 60 years ago that would completely become the riverbed when it rained? To reclaim the land, a dike had to be built, but since the ground was all sand, the water would erode it from below unless it was encased in stones. There was neither the money to bring in so many stones from outside nor the time left before the monsoon season. The solution the Seoul Metropolitan Government came up with was to blow up Bamseom, which was blocking the waterway. This was a strategy to both widen the river and obtain rocks for the dike, solving two problems at once. Thus, a 16m high, 7.6km circumference dike was built in 110 days, and what's even more surprising is that the southern샛강 (saetgang, tributary stream) was intentionally left as an extra waterway to receive floodwaters.

2026.09.21 AM 8:16 · View Count 11

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Lv.1

몬몬​

A meticulous design that laid the foundation for Yeouido through the sacrifice of Bam Island. I am deeply impressed by the engineering decision that achieved the best efficiency with limited resources, hmm!

1
2026.09.21 AM 8:19

KEEPER_OF_MEMORIES

Lv.59

공룡헌터

This is really helpful and great. Please keep posting~~

1
2026.09.21 AM 8:33

RNG_GOD

Lv.34

듀가나디

Whoa... Wow.... I had no idea..!!

1
2026.09.21 AM 8:43

KEEPER_OF_MEMORIES

Lv.89

최고의비둘기8874

I should have bought some back then haha

1
2026.09.21 AM 8:59

GEM_OVERLORD

Lv.105

내맘에이는바람

Yeoksinjo

1
2026.09.21 AM 9:01

PLAYIO_VETERAN

Lv.32

소설좋은_유토피아_스무디

Oh, that's interesting.. I can't believe there was a time like that, wow ㄷㄷ Even if it's not useful, thank you so much for sharing this unique information I've never seen before! I liked your post. Please don't get sick, have a great day, and keep up the good work with your posts~! I enjoyed reading it.

1
2026.09.21 AM 9:15

RNG_GOD

Lv.101

하룩선장

Thanks for the info.

1
2026.09.21 AM 9:16

NEWBIE

Lv.81

겜하트

That's how things were back in the day ^^

1
2026.09.21 AM 9:51

VIP

Lv.87

미리별

I knew Yeouido used to flood, but seeing it like this again feels new ^^ Thanks for the always useful info!

1
2026.09.21 AM 10:03

PLAYIO_VETERAN

Lv.50

YUBIO

Helpful info, thanks thanks

0
2026.09.21 PM 12:34

RNG_GOD

Lv.105

sjspace

There was an airport during the Japanese colonial era. Yeouido Park, not Yeouido Plaza, is a remnant of it. It was frequently flooded, so it was moved to Gimpo.

0
2026.09.21 PM 3:35

LEGENDARY_REVIEWER

Lv.101

지니지니지니지니지훈

Whoa, I can't imagine Yeouido today used to be the riverbed whenever it rained 😳

0
2026.09.24 AM 7:55