Spill details of major tank controlled by irrigation department

Current Affairs 15 January 2025

Irrigation Department

Water Management Division

Summary of Reservoir(Major) spilling status

Date 15.01.2025 Time : 3.00 p.m

RANGE

TOTAL NO OF TANKS

NO OF SPILLING TANKS

PERCENTAGE OF SPILLING TANKS

AMPARA

78%

ANURADAPURA

100%

BADULLA

57%

BATTICALOA

75%

HAMBANTOTA

50%

GALLE

50%

KANDY

33%

KURUNEGALA

40%

MONARAGALA

67%

POLONNARUWA

100%

PUTTALAM

100%

TRINCOMALEE

20%

MANNAR

25%

TOTAL

62%

Note

Kaudulla and Lunugamwehera downstream are in Alert level

Medium reservoirs spilling

Details of Major Reservoir Spilling as at 3.00 p.m. (15.01.2025)
No	Range/ Division	Reservoir	River/ Stream	District	No. of gates opened or Ungated spilling height (inch)	Spill Discharge (cusec)	Status of Downstream
1	Ampara/Ampara	Ekgal oya	Gal oya	Ampara	Spill=(6")	233	Normal
2	Ampara/Ampara	Namal oya	Gal oya	Ampara	Spill=(1')	990	Normal
3	Ampara/Ampara	Ambalan oya	Gal oya	Ampara	Spill=(1'2")	769	Normal
4	Ampara/Mahaoya	Rambakan oya	Mundeni aru	Ampara	Spill GO=(1'6"@2)	1756	Normal
5	Ampara/Ampara	Pannalgama	Galoya	Ampara	Spill=(8")	126	Normal
6	Ampara/Pothuwila	Rottai	Karada oya	Ampara	Spill=(8")	1076	Normal
7	Anuradapura / Rajangana	Rajangana	Kala oya	Anuradhapura	GO=(5'@4,4'@2,3'@2)	9000	Normal
8	Anuradapura / Anuradapura	Mahakandarawa	Malwathu Oya	Anuradhapura	Spill=9" GO=(9"@2)	2617	Normal
9	Anuradapura / Anuradapura	Mahawilachchiya	Malwathu Oya	Anuradhapura	Spill=(12") GO=(4'@2)	3009	Normal
10	Anuradapura / Anuradapura	Nuwara Wewa	Malwathu Oya	Anuradhapura	spill= (16")	1204	Normal
11	Anuradapura / Anuradapura	Manankattiya	Malwathu Oya	Anuradhapura	Spill=1' 1" GO=2'@4>		Normal
12	Anuradapura / Nahchaduwa	Nachchaduwa	Malwathu Oya	Anuradhapura	GO=(4'@6)	2889	Normal
13	Anuradapura / Huruluwewa	Huruluwewa	Yan oya	Anuradhapura	Spill=(1')	1552	Normal
14	Anuradapura / padaviya	Padaviya	Mora oya	Anuradhapura	Spill=970 GO=(2'6"@2)	2600	Normal
15	Anuradapura / padaviya	Wahalkada	Yan oya	Anuradhapura	Spill GO=(1"@6)	324	Normal
16	Anuradapura / padaviya	Yan oya	Yan oya	Anuradhapura	GO=(18"@3)	4116	Normal
17	Badulla / Mapakada	Sorabora	Mahaweli Ganga	Badulla	RG=(44"@5)	549	Normal
18	Badulla / Mapakada	Dambarawa	Mahaweli Ganga	Badulla	SPill=(9")	620	Normal
19	Badulla / Badulla	Ambewela	Mahaweli Ganga	Badulla	Spill=(2")	62	Normal
20	Badulla / Badulla	Kande ela	Mahaweli Ganga	Badulla	Spill=(1")	3	Normal
21	Batticaloa / Rugam	Unnichchai	Mahilawettuwan Aru	Batticaloa	RG=(24"@1,18"@2)	1603	Normal
22	Batticaloa / Rugam	Rugam	Mundeni aru	Batticaloa	Spill=(14") RG=(84"@2)	7783	Normal
23	Batticaloa / Rugam	Punanai Anicut	Maduru oya	Batticaloa	RG=(120''@9)	5694	Normal
24	Batticaloa / Navakiri	Navakiri	Andal oya	Batticaloa	Spill=0.25'	1815	Normal
25	Hambantota/ Tissamaharama	Weerawila	kiridi oya	Hambantota	Spill=3",RG=(30"@3)	562	Normal
26	Hambantota/ Tissamaharama	Bandagiriya	Malala ara	Hambantota	Spill GO=(12"@4,24"@3)	740	Normal
27	Hambantota/ Tissamaharama	Thissa wewa	Kiridi oya	Hambantota	Spill=2", (3"@1)	86	Normal
28	Hambantota/ Tissamaharama	Lunugamwehera	Kiridi oya	Hambantota	Spill GO=(0.3'@2,0.6'@4)	2972	Alert
29	Hambantota/ Tissamaharama	Yodha wewa	Kiridi oya	Hambantota	Spill=(12"@2)	106	Normal
30	Galle / Matara	Ellewela	Nilwala Ganga	Galle	Spill=(2")	9	Normal
31	Kandy / Dambulla	Wemedilla	Kala Oya	Kandy	Spilling	91	Normal
32	Kurunegala / Nikaweratiya	Mediyawa	Mee Oya	Kurunegala	Spilling	-	Normal
33	Kurunegala / Galgamuwa	Ambakolawewa	Kalaoya	Kurunegala	RG=(6"@2)	297	Normal
34	Kurunegala / Galgamuwa	usgala	Kalaoya	Kurunegala	Spilling=537(6")	537	Normal
35	Kurunegala / Nikaweratiya	Deduru oya	Deduru oya	Kurunegala	RG=(3'@2)	4100	Normal
36	Polonnaruwa/Minneriya	Girithale	Mahaweli Ganga	Polonnaruwa	Spill=(4") GO=(2')	276.7	Normal
37	Polonnaruwa/Minneriya	Minneriya	Mahaweli Ganga	Polonnaruwa	Spill=(12"@5,24"@1,30"@1)	1875	Normal
38	Polonnaruwa/Polonnaruwa	Parakrama samudraya	Mahaweli Ganga	Polonnaruwa	Spilling=(2'@6)	1530	Normal
39	Polonnaruwa/Kaudulla	Kaudulla	Mahaweli Ganga	Polonnaruwa	GO=(1'@6,9"@6)	3000	Alert
40	Puttlam /Puttlam	Tabbowa	Mee oya	Puttlam	RG=440(1'@2)	440	Normal
41	Puttlam /Iginimitiya	Iginimitiya	Mee oya	Puttlam	RG=(1'@2)	1000	Normal
42	Trincomalee/Kantale	Wan Ela	Mahaweli Ganga	Trincomalee	Spill=0.41'	110	Normal
43	Monaragala / Monaragala	Muthukandiya	Hada oya	Monaragala	Spill=(2")	180	Normal
44	Monaragala / Monaragala	Ethimale	Wila Oya	Monaragala	Spill=(4")	80	Normal
45	Mannar/Mannar	Giants Tank	Malwathu oya	mannar	Spill=(2")	81.6	Normal



Total No. of Major Reservoirs under ID			73	Notations:-	RG-Radial Gates
Total No. of Medium Reservoirs under ID			171		US - Ungated Spill
Overall average Capacity in %			91.6%		FSL - Full Supply Level
No.of Major Spilling reservoirs/ Anicuts			45		Cusec- Cubic Feet per second

	Medium reservoirs spilling details
No	Range/ Division	Name of Medium Reservoir	River/ Stream	District	No. of gates opened/Ungated spilling height (inch)	Spill Discharge (cusec)
1	Ampara/Mahaoya	Tampitiya	Mundeni aru	Ampara	spill=(6")	570
2	Ampara/Mahaoya	Radella	Heda oya	Ampara	Spill=(2")	22
3	Ampara/Pothuwila	Lahugala	Willa oya	Ampara	Spill=(6")	338
4	Ampara/Pothuwila	Panama	Karada oya	Ampara	Spill=(1")	16
5	Ampara/ Ampara	Ampara	Gal Oya	Ampara	Spill=(5")	292
6	Anuradhapura/Rajanganaya	Angamuwa	Kala oya	Anuradhapura	GO=(2'@2)	1200
7	Anuradapura /Anuradapura	Abaya wewa	Malwathu Oya	Anuradhapura	spill=(12")	330
8	Anuradapura /Anuradapura	Tissa wewa	Malawathu oya	Anuradhapura	spill=8.5"	120
9	Anuradapura / Nahchaduwa	Thuruwila	Malwathu Oya	Anuradhapura	spilling=(5") GO=(1')	218
10	Badulla / Badulla	Bomuruella	Mahaweli Ganga	Badulla	Spill=(4")	36
11	Badulla / Mapakada	Dehigama	Maduru Oya	Badulla	Spilling =(1")	13
12	Badulla / Mapakada	Demodara	Mahaweli Ganga	Badulla	Spilling=(1")	18
13	Batticaloa /Rugam	Weligahakandiya	Mundeni aru	Batticaloa	Spill=(13") Spill GO=(24"@4)	839
14	Batticaloa /Rugam	Wedamunai	Maduru Oya	Batticaloa	Spill=(3")	103
15	Galle / Matara	Denagama	kirama oya	Galle	Spill=(2")	17
16	Galle / Matara	Haliela	nilwala ganga	Matara	Spill=(1")	0
17	Monaragala / Bibila	Baduluoya	Gal Oya	Monaragala	Spilling=(2")	45.35
18	Monaragala / Bibila	Mallipotha	Gal Oya	Monaragala	Spill=(3")	25
19	Monaragala / Wellawaya	Alikotaara	Kiridioya	Monaragala	spill =(3@36")	1385
20	Monaragala/Monaragala	Kotiyagala	wilaoya	Monaragala	spill level
21	Monaragala/Monaragala	Sugaladevi	Govidu oya	Monaragala	Spill=(6")	115
22	Hambantota/ Tissamaharama	Debarawewa	kiridioya	Hambantota	Spill=(2")	15
23	Trincomalee/Kanthale	Peramaduwa	Mahaweli Ganga	Trincomalee	Spilling(1")	115

	Medium reservoirs spilling	23


	Signed
	Eng.H.M.P.S.D.Herath
	Director of Irrigation (Water Management)
	077-4448919