Abstract
Every year flash floods, landslides and debris flow caused catastrophic and devastating disasters resulting in huge infrastructure damages and financial losses in the hilly terrains, that is, Uttarkashi, Rudraprayag and Tehri Garhwal districts of Uttarakhand, India. The main reasons for damages in hilly areas are toe erosion, bank erosion and motion of the heavy boulders which roll and bounce along the bottom of the riverbed during cloud burst and concentrated precipitation resulting in high stream power. Most of the guidelines in the literatures focus on traditional river training measures. However, very few researches have been done toward moderation of stream power in steep slope hilly stream. This study examines the August 3, 2012 flood event of Assi Ganga river, Uttarakhand, India using HEC-RAS modeling for stream power moderation and identifies the lack of adequate disaster risk-reduction measures. Finally, the core area which requires further research to reduce the stream power of Assi Ganga type hilly stream has been identified.
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Acknowledgements
The authors wish to express deep sense of gratitude and sincere thanks to Department of Water Resources Development and Management (WRD&M), IIT Roorkee and Indian Water Resources Society (IWRS) for being helpful, providing opportunity and a great source of inspiration for presenting this innovative field of Research paper in “International Conference on Sustainable Technologies for Intelligent Water Management 2018”. Also, the authors would like to thank all the teaching and non-teaching staff members of the department who contributed directly or indirectly to successful completion of this research work.
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Patel, M.P., Sharma, N., Pandey, A. (2021). Research Needs for Stream Power Moderation in Hilly Torrents for Disaster Mitigation. In: Pandey, A., Mishra, S., Kansal, M., Singh, R., Singh, V.P. (eds) Hydrological Extremes. Water Science and Technology Library, vol 97. Springer, Cham. https://doi.org/10.1007/978-3-030-59148-9_14
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DOI: https://doi.org/10.1007/978-3-030-59148-9_14
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