Drop structures are one of the most common hydraulic structures, used in irrigation systems and water distribution and wastewater collection networks. While the channel slope is less than the natural ground slope, a drop is used to decrease the elevation of the channel bottom. Drops also dissipate a significant portion of the upstream flow keinetic energy. The main objective of the present study is to investigate methods of increasing the energy dissipation efficiency of a vertical drop by installing new types of dissipaters namely the Netting drop-type dissipaters, based on model experimentation. These types of dissipaters can be employed over the drop likewise a bottom rack. By assembling these structures over a vertical drop, the jet flow direction is changed and the degree of turbulence is increased, leading to the increase in the head loss. In the present study, the hydraulic characteristics of the supercritical approach flow over the netting drop-type dissipaters were investigated based on model experimentation. Experiments were performed for three different drop heights, eight different netting dissipaters with certain grid’s dimensions. The critical depth to the vertical drop height ration was considered between 0.183 and 0.389. According to the present experimental data, empirical equations were derived to estimate the wetted length of the dissipaters, the relative head loss, the brink depth and the depth and length of the pool downstream of the vertical drops equipped with the netting drop-type dissipaters. Overall, by installing theses type of dissipaters over the vertical drop, the head loss is increased by about 70 %. Consistent with the results for a subcritical flow, present results indicate that for a a supercritical approach flow, the ratio of brink depth to the critical depth is not exactly 0.715, being between 0.45 and 0.84. Keywords : Energy dissipaters, Supercritical flow, Netting dissipater, Vertical drop