Govt Advances Plans for North Java Sea Barrier

RRI.CO.ID, Jakarta - The government is finalizing plans to build a giant seawall along the north coast of Java (Pantura) to protect coastal areas from mounting environmental threats.

Coordinating Minister for Infrastructure and Regional Development, Agus Harimurti Yudhoyono (AHY), said the strategic project involves multiple stakeholders because it spans a vast area.

“This is not a project involving just one or two parties. It covers five provinces, 20 regencies, and five cities, particularly in the Pantura region,” he stated at the Taruna Nusantara High School Alumni Association (Ikastara) event in Jakarta on Saturday, May 23, 2026.

The government is expediting the planning process so the project can advance further in the coming years. “Hopefully, by next year (2027), it will be even more prepared,” Minister AHY said.

The giant seawall project is part of a long‑term strategy to address tidal flooding, land subsidence, and rising sea levels, all of which increasingly threaten Java’s northern coastline.

Although the idea of constructing a giant seawall has been discussed for years, the urgency has grown with the impacts of climate change and mounting pressure on coastal zones that serve as centers of settlement and economic activity.

Minister AHY noted that the Pantura region is home to about 50 million people, underscoring the need for comprehensive protection. Vulnerable areas include Jakarta Bay, Semarang, Demak, and Kendal, which are frequently hit by tidal flooding due to rising sea levels and land subsidence.

He said land subsidence in some areas reaches 5 to 20 centimeters per year, requiring immediate intervention through adequate coastal protection infrastructure.

To tackle the problem, the government is considering coastal embankments and seawalls in affected areas, combined with nature‑based solutions such as mangrove rehabilitation and planting to reduce wave impact and erosion.

Minister AHY emphasized that beyond protecting coastal communities, the project also aims to safeguard strategic industrial zones, special economic areas, and food production centers increasingly affected by seawater intrusion. “This is not just about disaster mitigation, but also a long‑term investment to sustain the national economy,” he said.

He acknowledged that the project requires significant financing, prompting the government to open opportunities for private sector participation, both domestic and international.

The seawall is designed to stretch about 500 kilometers, from Banten in West Java to Gresik in East Java. The estimated investment is around USD 80 billion, with the initial phase in Jakarta Bay projected to cost USD 8–10 billion. (Misni Parjiati)