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.

Giritale Reservoir

ගිරිතලේ · கிரிதலைPolonnaruwa

Giritale reservoir is not releasing water and is 38% full. Irrigation Department, 26 Oct.

Holding

As of 26 Oct · Checked 9 min ago

Giritale Reservoir: Giritale reservoir — Photo: AntanO, CC BY-SA 4.0 via Wikimedia Commons

38%full

26.8 of 45.6 ft

18.8 ft below full

Level +0.05 m since 23 Oct.

Mahaweli Authority: 39% (26 Oct)

Irrigation Department · 26 Oct

Release now

Only canal outlets are open

Outlet gates 8 cusecs

Irrigation Department · 26 Oct

Rain, day before: 19 mm; Irrigation Department · 26 Oct
Holds when full: ~27 million m³; Irrigation Department · 26 Oct
Source: Irrigation Department · 26 Oct Mahaweli Authority · 26 Oct

Recent days

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

Fri 23
58%
No data
Mon 26
59%
No data

Water depth, % of full supply · Released downstream

Where the water goes

No river gauge of ours is directly below this reservoir.

Photos

Giritale reservoir
Photo: AntanO, CC BY-SA 4.0 via Wikimedia Commons
Giritale reservoir, view 2
Photo: AntanO, CC BY-SA 4.0 via Wikimedia Commons
Giritale reservoir, view 3
Photo: Rjkbe, CC BY-SA 4.0 via Wikimedia Commons
Giritale reservoir, view 4
Photo: Dan Lundberg, CC BY-SA 2.0 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 Giritale releasing water?: Giritale reservoir is not releasing water and is 38% full. Irrigation Department, 26 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.