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.

Mahawilachchiya Reservoir

Anuradhapura

Mahawilachchiya reservoir is not releasing water and is 75% full. Irrigation Department, 26 Oct.

Holding

As of 26 Oct · Checked 4 min ago

75%full

18.3 of 22.1 ft

3.9 ft below full

Irrigation Department · 26 Oct

Release now

Not releasing water

Outlet gates 0 cusecs

Irrigation Department · 26 Oct

Rain, day before: 51 mm; Irrigation Department · 26 Oct
Holds when full: ~40 million m³; Irrigation Department · 26 Oct
Source: Irrigation Department · 26 Oct

Recent days

Water depth, % of full supply

Where the water goes

No river gauge of ours is directly below this reservoir.

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

Common questions

Is Mahawilachchiya releasing water?: Mahawilachchiya reservoir is not releasing water and is 75% 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.