Where does the reservoir information come from?

From the Irrigation Department's daily reservoir sheet and the Mahaweli Authority's daily report. Both update about once a day, so check the date shown. This site is independent: for spill-gate warnings follow the Disaster Management Centre and call 117.

Sri Lanka Water LevelsLive river-gauge readings

Weheragala Reservoir

Moneragala

Weheragala reservoir is not releasing water and is 22% full. Irrigation Department, 25 Oct.

Holding

As of 25 Oct · Checked 7 min ago

22%full

9.2 of 25.5 ft

16.3 ft below full

Irrigation Department · 25 Oct

Release now

Only canal outlets are open

Outlet gates 100 cusecs

Irrigation Department · 25 Oct

Rain, day before: 0 mm; Irrigation Department · 25 Oct
Holds when full: ~75 million m³; Irrigation Department · 25 Oct
Source: Irrigation Department · 25 Oct

Recent days

History starts 23 Oct. The trend chart appears after 3 days, check back.

Sat 24
36%
No data

Water depth, % of full supply · Released downstream

Where the water goes

No river gauge of ours is directly below this reservoir.

Photos

Weheragala reservoir
Photo: Z thomas, CC BY-SA 4.0 via Wikimedia Commons
Weheragala reservoir, view 2
Photo: Z thomas, CC BY-SA 4.0 via Wikimedia Commons
Weheragala reservoir, view 3
Photo: Z thomas, CC BY-SA 4.0 via Wikimedia Commons

Figures from the daily Irrigation Department and Mahaweli Authority reports. A blank there shows here as “no data”, never zero.

Common questions

Is Weheragala releasing water?: Weheragala reservoir is not releasing water and is 22% full. Irrigation Department, 25 Oct.
Where does the reservoir information come from?: From the Irrigation Department's daily reservoir sheet and the Mahaweli Authority's daily report. Both update about once a day, so check the date shown. This site is independent: for spill-gate warnings follow the Disaster Management Centre and call 117.