Reservoirs

25 releasing now · 74 holding

Irrigation Department 26 Oct · Mahaweli Authority 26 Oct

Showing 142 of 142 reservoirs

RajanganayaKala Oya · AnuradhapuraSpilling83% fullVery large14,963 cusecs · ≈ 420,000 L/s
Deduru OyaDeduru Oya · KurunegalaSpilling74% fullVery large10,400 cusecs · ≈ 290,000 L/s
AngamuwaKala Oya · AnuradhapuraSpilling100% fullLarge2,540 cusecs · ≈ 72,000 L/s
Yan OyaAnuradhapuraSpilling59% fullLarge2,292 cusecs · ≈ 65,000 L/s
TabbowaMee Oya · PuttalamSpilling100% fullLarge2,200 cusecs · ≈ 62,000 L/s
Usgala SiyabalanKurunegalaSpilling100% fullLarge1,518 cusecs · ≈ 43,000 L/s
InginimitiyaMi Oya · PuttalamSpilling93% fullLarge1,000 cusecs · ≈ 28,000 L/s
AmbakolawewaKurunegalaSpilling100% fullSmall879 cusecs · ≈ 25,000 L/s
Kala WewaKala OyaReleasing99% fullSmall508 cusecs · ≈ 14,000 L/s
ThuruwilaAnuradhapuraSpilling89% fullSmall357 cusecs · ≈ 10,000 L/s
DenagamaGalleSpilling100% fullSmall137.78 cusecs · ≈ 3,900 L/s
WemedillaKala Oya · MataleSpilling100% fullSmall130 cusecs · ≈ 3,700 L/s
Tissa WewaHambantotaSpilling59% fullSmall109 cusecs · ≈ 3,100 L/s
MediyawaKurunegalaSpilling100% fullSmall86 cusecs · ≈ 2,400 L/s
EllewelaMataraSpilling100% fullSmall46 cusecs · ≈ 1,300 L/s
AttaragallaKurunegalaSpilling100% fullSmall36 cusecs · ≈ 1,000 L/s
NalandaMahaweli Ganga · MataleSpilling100% fullSmall20 cusecs · ≈ 570 L/s
YudhaganawaMoneragalaSpilling100% fullSmall20 cusecs · ≈ 570 L/s
UyanwewaKirama Oya · GalleSpilling100% fullSmall18.02 cusecs · ≈ 510 L/s
YodawewaHambantotaSpilling100% fullSmall12 cusecs · ≈ 340 L/s
SaddhathissaMoneragalaSpilling100% fullSmall5 cusecs · ≈ 140 L/s
AmbewelaNuwara EliyaSpilling100% full
HulugallaKurunegalaSpilling100% full
Kande ElaNuwara EliyaSpilling99% full
PolgollaMahaweli GangaReleasing90% full4,364 cusecs · ≈ 120,000 L/sSpill window now. Mahaweli water managers expect this reservoir may spill in this window. Not a flood warning. Window: 23 Oct – 5 Nov.
Senanayake SamudrayaGal Oya · AmparaHolding17% full
NachchaduwaMalwathu Oya · AnuradhapuraHolding83% full
LunugamveheraKirindi Oya · HambantotaHolding70% full
RidiyagamaHambantotaHolding95% full
WeheragalaMoneragalaHolding22% full
MuthukandiyaHeda Oya · MoneragalaHolding48% full
MagallaKurunegalaHolding100% full
Kimbulwana OyaDeduru Oya · KurunegalaHolding84% full
Giants TankMalwathu Oya · MannarHolding73% full
Mora WewaTrincomaleeHolding33% full
BadagiriyaHambantotaHolding87% full
MahakandarawaAnuradhapuraHolding35% full
SugaladewiMoneragalaHolding47% full
Rambakan OyaAmparaHolding41% full
BatalagodaDeduru Oya · KurunegalaHolding100% full
DewahuwaKala Oya · MataleHolding99% full
Maha AluthgamaraHambantotaHolding69% full
Mau AraHambantotaHolding69% full
Wan ElaTrincomaleeHolding98% full
Thissa WewaAnuradhapuraHolding97% full
MinneriyaMahaweli Ganga · PolonnaruwaHolding69% full
JayawewaKurunegalaHolding95% full
GiritalePolonnaruwaHolding38% full
Mahagal WewaHambantotaHolding18% full
BalaharuwaMoneragalaNo live data100% full
BomuruellaMahaweli Ganga · BadullaHolding100% full
PeramaduwaTrincomaleeHolding100% full
VictoriaMahaweli Ganga96% full1.2 m below fullFilling. CEB doesn't publish live gate releases. We show storage and the Mahaweli weekly plan. Storage: Mahaweli Authority, 26 Oct. Level +0.39 m since 23 Oct. Full supply level 438 m: Mahaweli operating rules Storage is high and still rising. This is not a report that gates are open.Near spill level. Storage is high and still rising. This is not a report that gates are open.
ChandrikawewaMahaweli Authority reservoir95% fullSteady. Storage: Mahaweli Authority, 26 Oct. Level -0.27 m since 23 Oct.
Dambulu OyaMahaweli Authority reservoir93% fullSteady. Storage: Mahaweli Authority, 26 Oct. Level -0.04 m since 23 Oct.
LoggaloyaMahaweli Authority reservoir91% fullSteady. Storage: Mahaweli Authority, 26 Oct. Level +0.02 m since 23 Oct.
UlhitiyaMahaweli Authority reservoir91% fullSteady. Storage: Mahaweli Authority, 26 Oct. Level +0.07 m since 23 Oct.
PuhulpolaMahaweli Authority reservoir88% fullEmptying. CEB doesn't publish live gate releases. We show storage and the Mahaweli weekly plan. Storage: Mahaweli Authority, 26 Oct. Level -0.70 m since 23 Oct.
Kandiyapita (Left Bank)MoneragalaNo live data87% full
DebarawewaHambantotaNo live data87% full
UdawalaweWalawe Ganga87% fullSteady. CEB doesn't publish live gate releases. We show storage and the Mahaweli weekly plan. Storage: Mahaweli Authority, 26 Oct. Level -0.07 m since 23 Oct.
CastlereaghKelani Ganga86% fullEmptying. CEB doesn't publish live gate releases. We show storage and the Mahaweli weekly plan. Storage: Mahaweli Authority, 26 Oct. Level -0.61 m since 23 Oct.
HepolaoyaMahaweli Authority reservoir85% fullSteady. Storage: Mahaweli Authority, 26 Oct. Level +0.07 m since 23 Oct.
MaussakeleKelani Ganga85% full2.3 m below fullSteady. CEB doesn't publish live gate releases. We show storage and the Mahaweli weekly plan. Storage: Mahaweli Authority, 26 Oct. Level +0.03 m since 23 Oct. Full supply level 1167.4 m: Mahaweli operating rules
HambegamuwaMoneragalaNo live data84% full
MoragahakandaMahaweli Ganga84% fullSteady. CEB doesn't publish live gate releases. We show storage and the Mahaweli weekly plan. Storage: Mahaweli Authority, 26 Oct. Level -0.10 m since 23 Oct.
ViyathikulamMannarHolding84% full
VakaneriBatticaloaHolding79% full
KotmaleMahaweli Ganga78% full6.6 m below fullSteady. CEB doesn't publish live gate releases. We show storage and the Mahaweli weekly plan. Storage: Mahaweli Authority, 26 Oct. Level +0.07 m since 23 Oct. Full supply level 703 m: Mahaweli operating rules
RandenigalaMahaweli Ganga75% full9.1 m below fullSteady. CEB doesn't publish live gate releases. We show storage and the Mahaweli weekly plan. Storage: Mahaweli Authority, 26 Oct. Level +0.07 m since 23 Oct. Full supply level 232 m: Mahaweli operating rules
MahawilachchiyaAnuradhapuraHolding75% full
DambarawaBadullaHolding75% full
Alikota AraMoneragalaNo live data73% full
KandalamaMahaweli Authority reservoir73% fullSteady. Storage: Mahaweli Authority, 26 Oct. Level -0.06 m since 23 Oct.
BowatennaMahaweli Ganga71% full1.5 m below fullEmptying. CEB doesn't publish live gate releases. We show storage and the Mahaweli weekly plan. Storage: Mahaweli Authority, 26 Oct. Level -0.32 m since 23 Oct. Full supply level 251.76 m: Mahaweli operating rules
KekanaduraNilwala Ganga · MataraHolding68% full
DayarabaMahaweli Authority reservoir67% fullSteady. CEB doesn't publish live gate releases. We show storage and the Mahaweli weekly plan. Storage: Mahaweli Authority, 26 Oct. Level -0.20 m since 23 Oct.
Hakwatunawa WawaKurunegalaHolding65% full
Mahadivul WewaTrincomaleeHolding64% full
Upper KotmaleMahaweli Ganga62% fullEmptying. CEB doesn't publish live gate releases. We show storage and the Mahaweli weekly plan. Storage: Mahaweli Authority, 26 Oct. Level -2.68 m since 23 Oct.Spill window now. Mahaweli water managers expect this reservoir may spill in this window. Not a flood warning. Window: 22 Oct – 2 Nov.
MahawewaMoneragalaNo live data61% full
Parakrama SamudrayaMahaweli Ganga · PolonnaruwaHolding61% full
MapakadaBadullaHolding59% full
DiyabanaMahaweli Authority reservoir59% fullSteady. Storage: Mahaweli Authority, 26 Oct. Level +0.07 m since 23 Oct.
RantambeMahaweli Ganga59% full2.0 m below fullSteady. CEB doesn't publish live gate releases. We show storage and the Mahaweli weekly plan. Storage: Mahaweli Authority, 26 Oct. Level +0.07 m since 23 Oct. Full supply level 152 m: Mahaweli operating rules
SoraboraBadullaHolding59% full
SamanalawewaWalawe Ganga57% full15.1 m below fullFilling. CEB doesn't publish live gate releases. We show storage and the Mahaweli weekly plan. Storage: Mahaweli Authority, 26 Oct. Level +1.15 m since 23 Oct. Full supply level 460 m: Mahaweli operating rules
WahalkadaAnuradhapuraHolding57% full
KekiriobadaHambantotaNo live data57% full
KalugangaMahaweli Ganga56% fullSteady. Storage: Mahaweli Authority, 26 Oct. Level -0.12 m since 23 Oct.
Nuwara WewaMalwathu Oya · AnuradhapuraHolding56% full
KahakurullanpelassaMoneragalaNo live data54% full
HandapanagalaMoneragalaNo live data54% full
BasavakkulamaAnuradhapuraHolding53% full
DambewewaMoneragalaNo live data52% full
HalielaGalleHolding50% full
KantaleTrincomaleeHolding48% full
MallipothaMoneragalaNo live data45% full
Debara AraMoneragalaNo live data45% full
MuruthawelaUrubokka Oya · HambantotaNo live data44% full
ManankattiyaMalwathu Oya · AnuradhapuraHolding41% full
RugamBatticaloaHolding38% full
Maduru OyaMahaweli Authority reservoir37% fullSteady. Storage: Mahaweli Authority, 26 Oct. Level +0.26 m since 23 Oct.
PavatkulamVavuniyaHolding37% full
Ekgal OyaGal Oya · AmparaHolding34% full
KaudullaMahaweli Ganga · PolonnaruwaHolding34% full
TampitiyaAmparaHolding33% full
VendrasanTrincomaleeHolding32% full
PannalgamaAmparaHolding32% full
KalugaloyaAmparaHolding32% full
RajendrankulamMannarHolding31% full
HuruluwewaYan Oya · AnuradhapuraHolding31% full
Namal OyaAmparaHolding31% full
LahugalaAmparaHolding30% full
WeerawilaHambantotaHolding29% full
PadaviyaMa Oya · AnuradhapuraHolding28% full
HalmillapillewaMoneragalaNo live data28% full
NavakiriAndal Oya & Navakiri Ara · AmparaHolding26% full
MaruthamaduMannarHolding25% full
Pallan OyaAmparaHolding24% full
Ambalan OyaAmbalan Oya · AmparaHolding23% full
AlugalgeMoneragalaNo live data22% full
IratperiyakulamMannarHolding22% full
MuhathankulamMannarHolding20% full
AkathimuruppuMannarHolding20% full
UnnichchaiBatticaloaHolding19% full
RottikulamaAmparaHolding19% full
MailagamaMoneragalaNo live data18% full
KarawilaMoneragalaNo live data15% full
Badulu OyaMoneragalaNo live data14% full
DehigamaBadullaHolding14% full
ThumpankernyBatticaloaHolding11% full
NagadeepaMahaweli Ganga · BadullaHolding10% full
MoranaMahaweli Ganga · BadullaHolding6% full
DetagamuwaMoneragalaNo live data6% full
KotiyagalaMoneragalaHolding4% full
EthimaleWila Oya · MoneragalaHolding3% full
DemodaraBadullaHolding2% full
HimbiliyakadaMahaweli Ganga · KandyNo live data2% full
RadellaAmparaHolding2% full
PanamaAmparaHolding0% full
Kandiyapita (Right Bank)MoneragalaNo live dataNo data

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

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