Longest sea dam
Who
The Ministry of Food, Agriculture, Forestry and Fisheries, The Korea Rural Community Corporation
Where
Korea (Republic of) (Gunsan City)
When

The Saemangeum Seawall is located on the south west coast of South Korea. Measuring 33.9 km (21.06 miles) in length, it links two headlands just south of the port city of Gunsan, reclaiming an area of 400 sq km (155 sq miles). The longest dike was built by the Ministry of Food, Agriculture, Forestry and Fisheries and the Korea Rural Community Corporation and was officially completed on 27 April 2010.