my3 on moragahakandha

amasin

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Nov 11, 2012
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Minister of Agriculture Development and Agrarian Services Maithripala Sirisena on the occasion presented a complete report on the progress of the project’s, it objectives, costs, plans ahead etc.

The Minister also said that even though some opposition politicians were spreading false rumours regarding lack of funds the Government had already acquired the necessary funds to complete the project. Moragahakanda and Kaluganga Development Project is the largest reservoir project to be taken up for development under the Mahaweli River Development Program.

Objectives of the Projects – To provide irrigation water facilities to 81,422 ha in the Dry Zone of Sri Lanka – Potable and Industrial Water Supply to Anuradhapura and Trincomalee towns – Generation of electricity by hydro power Location. The project area is located in the Central and North Central Provinces in Sri Lanka.

Project Configuration The project consists of (a) Construction of two major reservoirs namely; Moragahakanda and Kaluganga reservoirs, (b) A conveyance system consisting of two tunnels and transfer canals and (c ) A power house of 20 MW installed capacity.

Principal Project Features Moragahakanda Reservoir Type of Dam: A roller compacted concrete main dam and two rock fill saddle dams. Maximum dam height: 65 metres Active Storage: 521 million cubic metres Kaluganga Reservoir Type of Dam A rock fill main dam and two saddle dams, one rock fill and the other earth Maximum Dam Height 67 metres Active Storage 144 million cubic metres Conveyance System Tunnels 1. Kalunga Moragahakanda transfer tunnel 15 m3/sec. capacity, length 3.2 km 2. Second Bowatenna Tunnel 25 m3/sec. capacity, length 7.2 km Conveyance Canals: Total length approximately 50 Km.

Project Cost : Cost benefit the investment cost of the project is US$ 382 million. The Economic Internal Rate of Return (EIRR) is 22 percent. Direct Benefits Agriculture: Cropping intensity which varies less than 100 percent to 154 percent in the different areas will be raised to around 181 percent on the average.

The direct benefits include increased rice yield per hectare with an additional agricultural production of 109,000 tons annually. The net annual agricultural benefit will be US$ 27.7 million in financial terms. Inland Fishery: The average annual fish production potential of the reservoir is estimated to be around 4,700 tons per year, representing a net benefit of US$ 1.67 million annually.

Potable and Industrial Water Supply: An increased supply of 64 MCM (by the year 2032) could be ensured towards meeting the potable and industrial water needs in the district of Matale, Anuradhapura, Trincomalee and Polonnaruwa from the surface water sources in the Ambanganga basin and its associated tanks and canals with the implementation of the project.