දැදුරු ඔය · தெதுரு ஓயாDeduru OyaKurunegala
Deduru Oya reservoir is spilling about 10,400 cusecs and is 74% full. Irrigation Department, 26 Oct.
SpillingVery large release
As of 26 Oct · Checked 9 min ago
Photo: Gobalakrishnan Thuvaragan, CC BY-SA 4.0 via Wikimedia Commons
74%full
43.3 of 46.9 ft
10,400 cusecs
Spill
≈ 290,000 L/s · An Olympic pool every ~8 s
1 cusec ≈ 28 L/s
History starts 23 Oct 2026.
Deduru OyaDeduru Oya reservoir
Photo: Gobalakrishnan Thuvaragan, CC BY-SA 4.0 via Wikimedia Commons
Deduru Oya reservoir, view 2
Photo: Gobalakrishnan Thuvaragan, CC BY-SA 4.0 via Wikimedia Commons
Deduru Oya reservoir, view 3
Figures from the daily Irrigation Department and Mahaweli Authority reports. A blank there shows here as “no data”, never zero.
Places on the map, from upstream to downstream
Eight spill gates of the Deduru Oya Reservoir have been opened, releasing water into the Deduru Oya at a rate…