Many programmes are being planned to control rain water in Colombo.
Floods occur in areas such as Dehiwala, Kawudana and Ranajayagama when torrential rain is experienced. The Land Reclamation and Development Corporation along with the Sri Lanka Navy and the Dehiwala Municipal Council have taken the lead if find solutions to this issue. It has been possible to accelerate this work with the Urban Development Authority being brought under the purview of the Defence Ministry. A notable feature will be the utilization of new technological methods deviating from traditional methods. Accordingly the Kaduwana canal way will be widened and the Ranajayagama pond dredged.