Author(s): Hyoseop Woo; Pierre Y. Julien; Byungman Yoon; Sung-Uk Choi
Linked Author(s): Hyoseop Woo, Pierre Y. Julien, Byungman Yoon, Sung-Uk Choi
Keywords: Hydrolink; South Korea; Four Major Rivers Restoration Project; FMRRP; Han-gang; Nakdong-gang; water scarcity; flood control; environmental restoration; socio-environmental opposition; sedimentation issues; technological developments; lessons learned; riverbed dredging; sediment redeposition; tributary headcuts; riverbed scour; movable weir structures; sedimentation management schemes; Hyoseop Woo; Pierre Y. Julien; Byungman Yoon; Sung-Uk Choi
Abstract:
In 2009, South Korea started a large multi-purpose water project on its four major rivers, including the Han-gang and Nakdong-gang. The main objectives of the Four Major Rivers Restoration Project (FMRRP) were securing water resources to combat water scarcity, implementing comprehensive flood control measures, and restoring the river's environmental functions. Despite socio-environmental opposition, the project was completed in 2011. This article reviews the sedimentation issues raised during and after the FMRRP regarding technological developments and the lessons learned from the project. They are: (1) riverbed dredging and sediment redeposition; (2) tributary headcuts; (3) riverbed scour downstream of the movable weir structures; and (4) sedimentation management schemes.
Year: 2024