2004 Satellite photo of
Saemangeum Estuary-the seawall is visible.
Saemangeum is an estuarine tidal flat on the coast of the Yellow Sea
in South Korea. It was dammed by the government of South Korea's
Saemangeum Seawall Project, completed in April 27, 2010, after a long
fight between the government and environmental activists, and is
scheduled to be converted into either agricultural or industrial land.
Prior to 2010, it had played an important role as a habitat for
migratory birds. The completion of this seawall is likely to be a
major contributor to the decline of many species. Around 400,000
shorebirds depended on the
Saemangeum estuarine as an important
feeding ground on the 24,000 km migration between Asia and Alaska
and Russia, including the two endangered waders Nordmann's
greenshank and spoon-billed sandpiper (each species with fewer than a
thousand surviving birds). A conservation organisation has accused
authorities of having failed to monitor the project's impact on local
wildlife in a transparent way, and carried out an independent
monitoring program in 2006.
Saemangeum lay at the mouths of the Dongjin and Mangyeong Rivers,
on the coast of Jeollabuk-do. It is just south of the estuary of the
Geum River. Neighboring districts include
Gunsan City, Buan County,
and Gimje City.
The project of filling in the estuary began in 1991, but was slowed by
a series of court actions by environmentalists. The completed seawall
is some 33 kilometers long, and replaces a coastline that was once
more than 100 kilometers long. After the estuary has been completely
filled, an area of about 400 km2 (roughly two-thirds the size of
Seoul) will have been added to the Korean peninsula, making it one of
the biggest land reclamation projects in history.
The estuary was originally called "Mangeum" (萬金). This name was
probably formed from combining the first character of "Mangyeong" and
that of "Gimje." 
Saemanguem was completed on April 27, 2010, officially becoming the
longest seawall ever built with the length of 33.9 km, breaking
the record of
Zuiderzee Works from 1932.
On August 2, 2010, Saemanguem was certified by Guinness World Records
as the longest man-made sea barrier in the world.
Saemangum will be the venue of the 25th World Scout Jamboree, hosted
by the Korea Scout Association.
1 See also
3 Further reading
4 External links
Environment of South Korea
Geography of South Korea
Rivers of South Korea
^ "Birds 'starve' at S Korea wetland". BBC News. 2007-05-12. Retrieved
^ "땅이름국토소례". Korea Landportal. June 2003. Retrieved
^ "sae man guem, korea 2023" (in Korean). Retrieved 2017-07-25.
Moores, N.; Battley, P.; Rogers, D.; Park M-N; Sung H-C; Van de Kam,
J.; & Gosbell, K. (2006). Birds Korea – AWSG Saemangeum
Shorebird Monitoring Program Report, 2006. Birds Korea publication:
Wikimedia Commons has media related to
Korea's government official website :
Saemangeum Development and
Chosun Ilbo report on the completion of the seawall, 2006-04-21
Saemangeum reference page from Birds Korea
Korea Rural Community Corporation
Article in New York Review of Books Mentions
Saemangeum Seawall as
prime example of bird habitat loss
Coordinates: 35°49′00″N 126°37′20″E / 35.81667°N
126.62222°E / 3