Assessment of
inundation risk at Bhavani River (stretch from Sathyamangalam to Velliyampalayam)
using HEC-RAS
Suriya S., Rekha Y., Vincent P., Madhan Kumar M. and Priya V.
Disaster Advances; Vol. 16(10); 24-29;
doi: https://doi.org/10.25303/1610da024029; (2023)
Abstract
Floods are natural disasters that cause losses and damages to lives, properties
and the nature. The main objective of this study is to perform hydraulic analysis
using HEC-RAS and to suggest measures to mitigate flood. The study area chosen for
analysis is Vellayampalayam to Sathyamangalam stretch which is located along the
Bhavani river. These areas are frequently affected due to flood. Field survey is
carried out to determine cross section data (width, depth, elevation of the river
stretch). Discharge is calculated using rational method.
These data are feed as input into HEC-RAS model for simulation. From the results,
it was found that the areas around the stretch chosen as study area are greatly
affected by the floods. As per field condition, the channel improvement plans were
suggested to mitigate the effects of flood.
