Flow behaviour concerning bank stability in the presence of spur dike – A review

Abstract Flow in streams and rivers typically erodes the banks, causing channel bank migration laterally, resulting loss of nearby land, modification morphology, excessive sediment transport, water quality degradation. A spur dike is a hydraulic structure placed at projecting outward to guide or divert flow away from bank, thus protecting it erosion. The stability riverbed banks influenced by turbulent characteristics such as three-dimensional velocity distribution, kinetic energy, Reynolds shear stress, intensity, bed stress. researchers found that these turbulence parameters are instrumental movement along channel's its banks. Spurs dikes significant river training provided protect Several aspects related dikes, their geometry, physical features, design considerations, scour patterns, etc., critically reviewed this paper. Despite numbers literature field depth around dike, role vegetation effect seepage still remains an unexplored area. These knowledge gaps conditions discussed for future studies.