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Colombo Water Cut Extended into September 5th Amidst Pipeline Repairs
The Pulse
GeneralHOTWednesday, September 2, 2026

Colombo Water Cut Extended into September 5th Amidst Pipeline Repairs

TLDR
  • 24-hour water cut extended to Sep 5, 11:30 PM.

  • Ambatale-Dehiwala pipeline maintenance near Diyatha Uyana cited.

  • Numerous Colombo suburbs, including Nugegoda, Dehiwala, affected.

The National Water Supply and Drainage Board (NWSDB) has announced a 24-hour water supply interruption affecting numerous suburbs of Colombo. The suspension is scheduled to commence on Thursday, September 3, 2026, at 8:00 PM and conclude on Friday, September 4, 2026, at 8:00 PM. This essential service disruption is necessary to carry out maintenance work at the Ambatale Water Treatment Plant, aimed at improving water quality and reliability. Areas including Nugegoda, Kohuwala, Dehiwala, Mount Lavinia, Ratmalana, and Moratuwa are among those expected to be impacted.

5 Updates

Update #6\u00b7 Sep 4 · 2:33 PM

The National Water Supply and Drainage Board (NWSDB) has announced an extension of the water supply interruption affecting Colombo suburbs. The cut, initially scheduled to end at 8 PM on September 4th, has been extended until 11:30 PM on September 4th due to ongoing repair work on a leak in the transmission pipeline. An additional report indicates the interruption may extend further, potentially affecting supply until 11:30 PM on September 5th, citing essential maintenance on the Ambatale-Dehiwala transmission pipeline near Diyatha Uyana.

Update #5\u00b7 Sep 3 · 5:01 AM

The National Water Supply and Drainage Board (NWSDB) has identified additional areas affected by the 24-hour water cut, scheduled from 8 PM on September 3rd to 8 PM on September 4th. New locations now confirmed to experience the disruption include Bank Handiya Road, W.A. Silva Mawatha, Havelock Road, Kalyani Road, Colombo 06 Hospital Roundabout Road, Jayanthi Mawatha, and Shanthi Mawatha, in addition to previously listed suburbs and areas.

Update #4\u00b7 Sep 3 · 3:30 AM

The National Water Supply and Drainage Board (NWSDB) has confirmed a 24-hour water cut from 8 PM on September 3rd to 8 PM on September 4th due to essential maintenance. The NWSDB has identified Maligagodella as a newly affected area, in addition to previously reported suburbs like Nugegoda, Kohuwala, Dehiwala, Mount Lavinia, Ratmalana, Moratuwa, and others.

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