Bowatenne
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The Bowatenne Diversion Project lies in the northern part of the central highlands of Sri Lanka. The bowatenne Diversion Dam and Tunnel lie about 30 miles north of the Polgolla Project. The project area consist crystalline and foliated metamorphic rocks. This types and structures encountered in the area are often similar to those in the region of Polgolle project. The Bowatenne Power Project had been designed to cater for the peak requirements of the country’s power demands and to operate only for 8 hours a day. The project comprises a 687 feet long 45 feet wide approach channel, a 18 feet diameter horse shoe concrete lined 4,535 feet long tunnel, surge chamber, a 40 M.W. Power plant, switch yard and transmission link between Bowatenne and Ukuwela. The complex which has been sited on the left bank of the Amban ganga derives its water requirements from the already constructed Bowatenne Reservoir which also supplies water to the Kala Oya basin through an independent irrigation tunnel/ The water in the power tunnel will be emptied into the Amban Ganga about ½ mile down stream of the dam after the generation of power. The water in the river will be re-diverted along the Elahera-Minneriya Yoda Ela for irrigation requirements. Reservoir to Tunnel Inlet Type
- Open cut Power
Tunnel: Surge
Chamber Surge
Chamber Dam Power
Plant
Equipment
- 1
Peripheral Works - 3,895 Total - 201.970
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