To improve stability of the water resources that were seriously affected by climate change and various environmental effects and to supply the clean water always, continuous efforts are essential. Provision of measures with respect of hardware is basically essential to improve the water resources stability due to the topographic characteristic in Korea. However, building a new dam becomes gradually very difficult because of a hardship in selecting right places, opposition forces such as environment and local residents, negative publicity for large civil engineering projects, and so on. The present study, therefore, proposes the Blue dam as an alternative for securing the water resources of a new concept considering domestic conditions. To evaluate the effect of the Blue dam, the Hec-ResSim model is used and the probabilistic discharge flow rate is applied. As a result, when Dam Yeongcheon is applied as a study area, securing water resources of 14 million tons are predicted be secured and the flood control of 15.4 million tons is expected, in comparison with operation of the existing dam only. Consequently, Blue dams are supposed to carry out the function of securing water resources, controling flood, maintaining eco-environmental instream flow, generating hydroelectric power, and providing spaces for recreational activities.

• 추태호(부산대학교 사회환경시스템공학과) | Tai-Ho Choo (Dept. of Environmental and Civil Engineering, Pusan National University)
• 윤현철(부산대학교 사회환경시스템공학과) | Hyeon-Cheol Yoon (Dept. of Environmental and Civil Engineering, Pusan National University)
• 윤관선(부산대학교 사회환경시스템공학과) | Gwan- Seon Yun (Dept. of Environmental and Civil Engineering, Pusan National University)
• 권용빈(부산대학교 사회환경시스템공학과) | Yong-Been Kwon (Dept. of Environmental and Civil Engineering, Pusan National University)
• 심수용(부산대학교 사회환경시스템공학과) | Su-Yong Shim (Dept. of Environmental and Civil Engineering, Pusan National University)
• 채수권(을지대학교 보건환경안전학과) | Soo-Kwon Chae (Dept. of Environmental Health and Safety, Eulji University) Corresponding author