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Gampaha District placed on alert as Attanagalu Oya reaches flood warning level

Authorities in Gampaha have issued a flood warning following a sharp rise in water levels at the Attanagalu Oya, with current conditions attributed to ongoing heavy rainfall across the region.

LSN Sri Lanka · 26 October 2026

Gampaha District placed on alert as Attanagalu Oya reaches flood warning level

The Gampaha District Irrigation Director's Office announced the flood alert on Tuesday following measurements taken at the Dunamale gauging station on the Attanagalu Oya. Water levels at the monitoring point had climbed to 3.41 metres, reaching the threshold that triggers flood warnings for the district.

The surge in river levels has been attributed to persistent rainfall affecting the Gampaha area and surrounding regions. Authorities did not provide specific details regarding the duration of the warning or anticipated peak water levels.

The Attanagalu Oya, a major river system in the Western Province, plays a critical role in irrigation and water management for Gampaha District. Flood warnings at the Dunamale gauging station typically prompt heightened monitoring and preparedness measures among local authorities and communities in low-lying areas along the river.

Residents in flood-prone zones in Gampaha are advised to remain vigilant and adhere to any directives issued by local authorities. The Irrigation Department continues to monitor water levels closely as weather conditions persist.