Jakarta keeps wrestling with tidal floods year after year, and the pattern has become so familiar that people barely raise an eyebrow anymore. Yet behind the scenes, an enormous project is quietly stretching along the coastline. The work aims to shield the capital from disasters that have grown more frequent and intense.
The provincial government is building a coastal protection system known as National Capital Integrated Coastal Development Phase A. The plan covers more than 28 kilometers of embankments. A significant section, 11.8 kilometers, is already finished. The rest, around 16.5 kilometers, is still under construction. According to the Head of the Water Resources Agency, Ika Agustin, the latest count as of November shows “roughly 16.5 kilometers left.”
Her inspection in Muara Baru earlier this month showed how the project is progressing step by step. Work is now centered in Asashimas and West Ancol. Both areas are expected to reach completion before the end of December 2025. After that, construction will shift toward Pluit, Muara Angke, and Kali Lencong in 2026.
“There are two locations we are currently working on, which are Asahimas and West Ancol,” she explained while walking along the sea wall. Even in its unfinished state, key sections have already proven their worth. The tidal surge that hit on December 4, 5, and 6 would have spread much farther without the embankments already standing in place.
As she said, “So actually during the high tide on the 4th, 5th, and 6th, if these embankments had not been built, the tidal impact would have been far bigger.”
Muara Angke also has a dedicated mitigation embankment running 1.1 kilometers. Construction crews are still busy with the casting stage, but the barrier has already begun resisting seawater. Ika expects it to be fully functional soon. “The 1.1-kilometer mitigation embankment currently under construction in Muara Angke is still in the casting process. God willing, by the latest January, it will be fully functional at 100 percent.”
Step by step, the coastal defenses are forming a continuous line meant to protect millions of residents. Each completed segment reduces the risk of future disasters in Jakarta just like tidal floods. The hope is simple: fewer flooded homes, fewer disrupted lives, and a capital city that can finally breathe a little easier when the tide rises.
