Randenigala Dam: Difference between revisions

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	The '''Randenigala Dam''' ({{lang-si\|රන්දෙනිගල වේල්ල}}) is a large ] ] ] at Rantembe, in the ] of ].<ref name=MahaweliAuthority>{{cite web\|title=Randenigala Dam and Reservoir\|url=http://www.mahawelicomplex.lk/randdam.htm\|publisher=Mahaweli Authority\|access-date=12 January 2014}}</ref> Construction of the dam began in November 1982, and was completed in approximately {{Nowrap\|4 years}}. The dam and power station ~~was~~ ceremonially opened by then ] ] in 1986.<ref name=SundayTimes />		The '''Randenigala Dam''' ({{lang-si\|රන්දෙනිගල වේල්ල}}) is a large ] ] ] at Rantembe, in the ] of ].<ref name=MahaweliAuthority>{{cite web\|title=Randenigala Dam and Reservoir\|url=http://www.mahawelicomplex.lk/randdam.htm\|publisher=Mahaweli Authority\|access-date=12 January 2014}}</ref> Construction of the dam began in November 1982, and was completed in approximately {{Nowrap\|4 years}}. The dam and power station wee ceremonially opened by then ] ] in 1986.<ref name=SundayTimes />

	Construction of the dam cost approximately {{Nowrap\|] 4.898 billion (1986)}}, of which 24.6% ({{Nowrap\|Rs. 1.207 billion}}) was funded by the ], and the majority of the remainder by ].<ref name=SundayTimes>{{cite news\|title=Sri Lanka's biggest river basin development project\|url=http://www.sundaytimes.lk/101024/FunDay/fut_01.html\|access-date=12 January 2014\|newspaper=]\|date=10 October 2010}}</ref>		Construction of the dam cost approximately {{Nowrap\|] 4.898 billion (1986)}}, of which 24.6% ({{Nowrap\|Rs. 1.207 billion}}) was funded by the ], and the majority of the remainder by ].<ref name=SundayTimes>{{cite news\|title=Sri Lanka's biggest river basin development project\|url=http://www.sundaytimes.lk/101024/FunDay/fut_01.html\|access-date=12 January 2014\|newspaper=]\|date=10 October 2010}}</ref>

Revision as of 18:39, 20 January 2024

Dam in Rantembe, Central Province

Randenigala Dam රන්දෙනිගල වේල්ල
The Randenigala Dam as seen from the southern bank, with the power station in the background.
Country	Sri Lanka
Location	Rantembe, Central Province
Coordinates	07°12′00″N 80°55′30″E / 7.20000°N 80.92500°E / 7.20000; 80.92500
Purpose	Power
Status	Operational
Construction began	November 1982 (1982-11)
Opening date	1986 (1986)
Construction cost	Rs. 4.898 billion (1986)
Owner(s)	Mahaweli Authority
Dam and spillways
Type of dam	Embankment dam
Impounds	Mahaweli River
Height (foundation)	94 m (308 ft)
Length	485 m (1,591 ft)
Elevation at crest	239 m (784 ft)
Width (crest)	10 m (33 ft)
Width (base)	303 m (994 ft)
Spillways	3
Spillway type	Tainter gate, chute
Spillway capacity	8,100 m/s (290,000 cu ft/s)
Reservoir
Creates	Randenigala Reservoir
Total capacity	861,000,000 m (3.04×10 cu ft)
Active capacity	558,000,000 m (1.97×10 cu ft)
Catchment area	2,330 km (900 sq mi)
Surface area	1,350 ha (13.5 km)
Operator(s)	CEB
Turbines	2 × 63 MW
Installed capacity	126 MW
Annual generation	428 GWh
http://www.mahawelicomplex.lk/randdam.htm

The Randenigala Dam (Template:Lang-si) is a large hydroelectric embankment dam at Rantembe, in the Central Province of Sri Lanka. Construction of the dam began in November 1982, and was completed in approximately 4 years. The dam and power station wee ceremonially opened by then President J. R. Jayawardene in 1986.

Construction of the dam cost approximately Rs. 4.898 billion (1986), of which 24.6% (Rs. 1.207 billion) was funded by the local government, and the majority of the remainder by Germany.

Dam

The Randenigala Dam is located 19 km (11.8 mi) downstream of the Victoria Dam, and 2.8 km (1.7 mi) upstream of the Rantembe Dam. Randenigala measures 94 m (308 ft) in height, 485 m (1,591 ft) in length, with a crest and base width of 10 m (33 ft) and 303 m (994 ft) respectively. The embankment dam is made mostly of rocks, and consists of a clay core.

Three large controlled tainter gate chute spillways, with a combined discharge volume of 8,100 m/s (290,000 cu ft/s), are constructed at the southern end of the dam. The three spillways measure 270 m (886 ft) in length, with a combined width of 48 m (157 ft).

Reservoir

The dam creates the Randenigala Reservoir. With a catchment area of 2,330 km (1,450 mi) and a total storage capacity of 861,000,000 m (3.04×10 cu ft), Randenigala is one of the largest reservoirs in the country.

The reservoir experiences approximately 1,250–3,000 mm (49.21–118.11 in) of rainfall annually. In addition to this, the reservoir is also topped up with water from the Victoria Reservoir upstream, and the Mahaweli River.

Power station

The power station is located immediately downstream of the dam, on the left bank. Water from the reservoir is delivered to the power station via a single steel-lined tunnel with a length and diameter of 270 m (886 ft) and 6.2 m (20.3 ft) respectively.

The plant consists of two generators with a rated capacity of 63 MW each, powered by two francis turbines. The units were commissioned in August and September 1986 respectively. At a combined capacity of 126 MW, the plant generates 428 GWh annually.

References

^ "Randenigala Dam and Reservoir". Mahaweli Authority. Retrieved 12 January 2014.
^ "Sri Lanka's biggest river basin development project". The Sunday Times. 10 October 2010. Retrieved 12 January 2014.

External links

Construction of the Randenigala Dam (video sequence) on YouTube

Electricity in Sri Lanka

Sustainable
power stations

Hydro power

Laxapana Complex	Broadlands Canyon Castlereigh Laxapana Maskeliya Norton
Mahaweli Complex	Bowatenna Deduru Oya Kotmale Moragahakanda Nilambe Polgolla Randenigala Rantembe Upper Kotmale Victoria
Other	Gal Oya Kukule Ganga Samanala Udawalawe

Solar power

Wind power

Fossil-fuel
power stations

Operational / UC	Aitken Spence Asia Power Sapugaskanda Colombo Port Ace Embilipitiya KCHT Karadiyana Kelanitissa Lakdhanavi Lakvijaya Northern Sampur (cancelled) Sapugaskanda Sojitz Kelanitissa Uthuru Janani Yugadanavi
Decommissioned	Ace Horana Ace Matara Aggreko Chunnakam Heladhanavi Koolair Pettah

Organizations

Inland waters of Sri Lanka

Rivers

≥100km	Deduru Oya Gal Oya Gin Ganga Kala Oya Kalu Ganga Kukule Ganga Kelani River Kehelgamu Oya Maskeliya Oya Pusweli Oya Kirindi Oya Kumbukkan Oya Maduru Oya Maha Oya Malwathu Oya Amban Ganga Kotmale Oya Nanu Oya Mahaweli Ganga Menik Ganga Mi Oya Walawe River Belihul Oya Yan Oya
<100km	Akkarayan Aru Kanakarayan Aru Kodalikkallu Aru Madu Ganga Mandekal Aru Mavil Aru Nay Aru (Mannar) Nay Aru (Mullaitivu) Netheli Aru Nilwala River Pali Aru Pallavarayankaddu Aru Parangi Aru Per Aru Piramenthal Aru Theravil Aru Valukkai Aru Verugal Aru

Lakes

Lagoons

Eastern coast	Batticaloa Lagoon Chalai Lagoon Chundikkulam Lagoon Kokkilai Lagoon Nai Aru Lagoon Nanthi Lagoon Ullackalie Lagoon Upaar Lagoon Vadamarachchi Lagoon Valaichchenai Lagoon
Western coast	Jaffna Lagoon Mundal Lagoon Negombo Lagoon Puttalam Lagoon Uppu Aru Lagoon
Southern coast	Koggala Lagoon Rekawa Lagoon Malala-Ambilikala Lagoons

Dams and
reservoirs

With hydroelectric
capabilities

Irrigation-only
(incl. ancient tanks)

Canals

Categories:

Revision as of 06:24, 5 May 2023 editAntanO (talk \| contribs)Autopatrolled, Extended confirmed users, New page reviewers, Pending changes reviewers, Rollbackers11,297 editsm Adding/removing wikilink(s)← Previous edit		Revision as of 18:39, 20 January 2024 edit undoभागने का प्रयास (talk \| contribs)285 editsNo edit summaryTags: Reverted Visual edit Next edit →
Line 56:		Line 56:
	}}		}}

	The '''Randenigala Dam''' ({{lang-si\|රන්දෙනිගල වේල්ල}}) is a large ] ] ] at Rantembe, in the ] of ].<ref name=MahaweliAuthority>{{cite web\|title=Randenigala Dam and Reservoir\|url=http://www.mahawelicomplex.lk/randdam.htm\|publisher=Mahaweli Authority\|access-date=12 January 2014}}</ref> Construction of the dam began in November 1982, and was completed in approximately {{Nowrap\|4 years}}. The dam and power station ~~was~~ ceremonially opened by then ] ] in 1986.<ref name=SundayTimes />		The '''Randenigala Dam''' ({{lang-si\|රන්දෙනිගල වේල්ල}}) is a large ] ] ] at Rantembe, in the ] of ].<ref name=MahaweliAuthority>{{cite web\|title=Randenigala Dam and Reservoir\|url=http://www.mahawelicomplex.lk/randdam.htm\|publisher=Mahaweli Authority\|access-date=12 January 2014}}</ref> Construction of the dam began in November 1982, and was completed in approximately {{Nowrap\|4 years}}. The dam and power station wee ceremonially opened by then ] ] in 1986.<ref name=SundayTimes />

	Construction of the dam cost approximately {{Nowrap\|] 4.898 billion (1986)}}, of which 24.6% ({{Nowrap\|Rs. 1.207 billion}}) was funded by the ], and the majority of the remainder by ].<ref name=SundayTimes>{{cite news\|title=Sri Lanka's biggest river basin development project\|url=http://www.sundaytimes.lk/101024/FunDay/fut_01.html\|access-date=12 January 2014\|newspaper=]\|date=10 October 2010}}</ref>		Construction of the dam cost approximately {{Nowrap\|] 4.898 billion (1986)}}, of which 24.6% ({{Nowrap\|Rs. 1.207 billion}}) was funded by the ], and the majority of the remainder by ].<ref name=SundayTimes>{{cite news\|title=Sri Lanka's biggest river basin development project\|url=http://www.sundaytimes.lk/101024/FunDay/fut_01.html\|access-date=12 January 2014\|newspaper=]\|date=10 October 2010}}</ref>

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