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Enhancing of drinking water source for the city of Tangalle

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conference contribution
posted on 12.02.2018 by G.T. Dharmasena
The Tangalle town is located on the Southern coastal belt of Sri Lanka and the source of drinking water to the Tangalle town is the Kirama Oya. Due to rapid expansion of the town the project operates at 25 % of its capacity. In addition the projected demand of 15,000 cu.m.per day is required in 2025. Due to competitive use of water for irrigation during the dry weather periods, it is conceptualized to store back water of Kirama Oya during floods in a lake. The floods which normally occur with the monsoonal rains are expected to fill up the lake. Apart from the empirical knowledge available regarding the flooding of the Kirama Oya , there was no detailed hydrological study. This paper describes the application of NAM hydrological model and HEC_RAS hydrodynamic model to understand the process of flooding, its frequency of occurrence and any implication of impounding water in Nawayalawila on the existing environment.
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School

  • Architecture, Building and Civil Engineering

Research Unit

  • Water, Engineering and Development Centre (WEDC)

Published in

WEDC Conference

Citation

DHARMASENA, G.T., 2006. Enhancing of drinking water source for the city of Tangalle. IN: Fisher, J. (ed). Sustainable development of water resources, water supply and environmental sanitation: Proceedings of the 32nd WEDC International Conference, Colombo, Sri Lanka, 13-17 November 2006, pp. 427-433.

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© WEDC, Loughborough University

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VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2006

Notes

This is a conference paper.

Other identifier

WEDC_ID:9926

Language

en

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