Giant Sea Wall Jakarta
Giant Sea Wall Jakarta (Indonesian: Tanggul Laut Raksasa Jakarta) is part of a massive coastal development project in Jakarta, Indonesia which commenced in 2014 and expected to be materialized by 2027. The coastal development project includes the construction of a giant seawall along the coast, building a water reservoir, and the reclamation of land. Construction of an 8 km part of the sea wall along the coast was officially launched on Oct. 9, 2014.
Floods in Jakarta are chronic, especially during the monsoon season. In 2007, the city suffered from catastrophic flooding that resulted in 76 deaths and half a million flood victims displaced or otherwise impacted. Jakarta lies on a low flat basin 23 feet (7 m) above sea level. 40 percent of that, particularly the northern areas, is below sea level. Given the continuous groundwater extraction and the pressure of skyscraper developments, Jakarta is sinking at 5 to 10 centimeters per year, up to 20 centimeters. From 2000 to 2050 the potential coastal flood extent is estimated to increase by 110.5 km2 due to both land subsidence and sea level rise; it is estimated that the city will be entirely submerged by 2050. Furthermore, it is estimated that the city's population of over 10.6 million people will be displaced, especially those communities closest to water bodies.
To prevent this, a feasibility study to build a dike on Jakarta Bay was undertaken. The project is known as National Capital Integrated Coastal Development (NCICD) master plan or Giant Sea Wall Jakarta. The project, which also has the task of revitalizing the coastline and most importantly offering a vision of the future for the Indonesian capital, was designed by the architecture firm KuiperCompagnons of Rotterdam and with a collaboration between Indonesia, and a consortium of Dutch companies (Witteveen+Bosa and Grontmij), which formed National Capital Integrated Coastal Development and were all involved in the creation of the master plan that started in 2008.