Resolving Emerging Issues with Aging Dams under Climate Change Projections

AbstractConcerns about the collapse of dams due to overtopping are increasing owing to heavy rainfall and frequent typhoons associated with climate change. As a result, there has been a spike in anxiety among residents living near the downstream areas of dams. Although the dangers associated with da...

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Bibliographic Details
Published in:Journal of water resources planning and management 2020-05, Vol.146 (5)
Main Authors: Choi, Ji-Hyeok, Jun, Changhyun, Liu, Pan, Kim, Jong-Suk, Moon, Young-Il
Format: Article
Language:English
Subjects:
Ageing
Aging
Climate change
Dam safety
Dams
Feasibility studies
Frameworks
Hurricanes
Hydrology
Overtopping
Rain
Rainfall
Rehabilitation
River basins
Rivers
Safety
Technical Papers
Typhoons
Water resources management
Water supply systems
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Summary:AbstractConcerns about the collapse of dams due to overtopping are increasing owing to heavy rainfall and frequent typhoons associated with climate change. As a result, there has been a spike in anxiety among residents living near the downstream areas of dams. Although the dangers associated with dam safety are increasing, there is still a lack of comprehensive dam rehabilitation and implementation frameworks that consider climate change. A thorough review of existing dam facilities is needed in light of climate change and the deteriorating conditions of aging dams. In this study, we performed a hydrological safety assessment and developed a dam rehabilitation implementation framework to proactively diagnose and resolve dam safety issues caused by climate change and aging water infrastructure. The dam rehabilitation assessment framework has three main facets: appropriateness of evaluation components, importance of weighted analysis, and comprehensive dam rehabilitation assessment and implementation framework. The proposed approach was applied to selected sites with high feasibility of dam rehabilitation in Korea’s major river basins considering different climate change scenarios.
ISSN:0733-9496
1943-5452
DOI:10.1061/(ASCE)WR.1943-5452.0001204