Floods continue to plague Jakarta as extreme rainfall intensities\nexceed the capacity of the provincial government\u2019s flood control\ninfrastructure. The Jakarta Water Resources Agency (SDA) acknowledges\nthis as a consequence of climate change, which has made rainfall\npatterns increasingly unpredictable.<\/p>\n
Ika Agustin Ningrum, Head of the Jakarta Water Resources Agency,\nstated that the city\u2019s flood control infrastructure was designed to\nhandle rainfall of 100-150 millimetres (mm), encompassing water pumps,\nriver embankments, drainage systems, reservoirs, and retention\nponds.<\/p>\n
\u201cThe design capacity is determined by the probability of rainfall\noccurrence. In Jakarta, the design capacity used is 100-150 mm,\u201d Ika\nsaid on Thursday (28 May).<\/p>\n
However, in recent years, Jakarta\u2019s rainfall has increased to 150-250\nmm due to climate change, rendering the existing infrastructure unable\nto optimally manage water flow during extreme downpours.<\/p>\n
\u201cFlood control infrastructure in Jakarta is effective for 100-150 mm\nof rainfall, but higher intensities require greater infrastructure\ncapacity,\u201d she added.<\/p>\n
According to Ika, expanding flood infrastructure capacity requires\nmore land and substantial construction costs. Nevertheless, the Jakarta\nprovincial government is implementing mitigation measures, including\nstrengthening both stationary and mobile pumping systems.<\/p>\n
As of 18 May 2026, the SDA has 683 stationary pumps distributed\nacross 246 locations, with an additional 540 mobile pumps deployed\nacross five administrative cities and the Thousand Islands Regency.<\/p>\n
Alongside bolstering pumping systems, the Jakarta provincial\ngovernment is continuing river and reservoir construction and\nmaintenance from 2025 to 2027 via the JakTirta project and the National\nCapital Integrated Coastal Development (NCICD), also known as coastal\nprotection barriers.<\/p>\n
Ika stated that the projects include phased polder system\nconstruction, river and canal embankment upgrades, reservoir and\nretention pond development, and enhanced drainage channels in\nflood-prone areas.<\/p>\n
\u201cThese projects will introduce various flood control infrastructures\nto enhance Jakarta\u2019s water management capacity,\u201d Ika said. (Far\/P-3)<\/p>", "url": "https:\/\/jawawa.id\/newsitem\/jakartas-flood-defences-overwhelmed-by-rising-rainfall-1780015778", "image": "" }, "sponsor": "Okusi Associates", "sponsor_url": "https:\/\/okusiassociates.com" }