Large scale Multi-purpose Dams provide water supply. flood control and power generation
to downstream areas, but they also can have a negative effect on the surrounding
areas. Therefore, Dam facilities are constructed in an environment friendly manner
starting with project inception and continuously during operations. As well,
improvement projects are conducted that will help improve standard of living in dam
area for residents and visitors. A dditionally, after completing the construction, a
regular portion of the income from dam operation is used for support projects that are
conducted to increase the income level of local residents and to promote social welfare
improvements in the area surrounding the dam. Moreover, as KOWACO conducts many
projects aiding the development of the dam area and carried out proper maintenance,
effort is also made to decrease any negative effects that may be a result of dam
operations. This paper introduces the scope of support and improvement projects
conducted through revision of related law and regulation. As well, it considers the all
aspects concerned with Korean dam areas using instances of construction of
environmentally friendly design. We also examine environmental improvement projects at
existing facilities and cases of improving dam operations and damage mitigation.