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http://dx.doi.org/10.3741/JKWRA.2007.40.5.383

Analysis of Economic Effectiveness for Flood Control of Dam  

Choi, Seung-An (Dept. of PIMAC, KDI)
Yi, Choong-Sung (Dept. of Civ. and Envir. Engrg., Inha Univ.)
Shim, Myung-Pil (Dept. of Civ. and Envir. Engrg., Inha Univ.)
Kim, Hung-Soo (Dept. of Civ. and Envir. Engrg., Inha Univ.)
Publication Information
Journal of Korea Water Resources Association / v.40, no.5, 2007 , pp. 383-396 More about this Journal
Abstract
The studies on efficiency of flood control reservoir has been introduced into four categories including direct flood control contribution by reservoir, flow-duration change and environmental-ecological change in downstream of dam and flood damage estimation of flood plain. In spite of all the previous approaches, the quantification of the effect of reservoir on the flood control in planning stage is quite complex due to lack of a standard for quantifying feasibility of project. In this study, we develop a methodology that can clearly and accurately quantify the flood damage reduction together with the existing flood level reduction at downstream. The proposed approach uses three appraisal standards of flood control: 'potential safety', 'relative risk' and 'absolute risk' according to the risk by stage. The developed methodology was applied to the Namhan river basin with the storm event of July, 2006. The result shows the damage reduction of 4,189 billion won was estimated. The economic benefits for the flood control effect by dam will greatly contribute to the public understanding of the importance and the effect of the flood control by dam.
Keywords
flood control effect; flood level reduction; flood damage reduction; feasibility; economic benefits;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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