MAHAWELI RIVER

MAHAWELI RIVER

The Mahaweli River is a 355km (208ml) long river, ranking as the longest river in Sri Lanka. Its drainage basin is the largest river in country and covers almost one-fifth of the total area of the island. The river reaches the Bay of Bengal on the south western side of Trincomalee Bay.The bay includes the first of a number submarine canyons. making trinkomalee one of the finest deep sea harbords in the world. the river and its are tributaries are damed  at several location to allow irrigation in the day zone.With olmost 1,000 km2 of land irricated.Production of hydroelectricty  from  six dams of the  mahaweli system supplies more than 40% of sri lanka,s electricty needs. one of the many sources of the river is the  kotmale oya.

BRANCHES

         KOTMALE OYA

        

         HATTON OYA

         UMA OYA

       

         BADULU OYA

         AMBAN GANGA