This research focused on development and application feasibility for the coalesced continuous block
system in river bank protection. Most of block systems in river bank are pre cast type and have some difficulties
against high velocity flood condition or high pressure load, however, the continuous block system can be applied to
flood damage recover as well as environmental vegetation block system in river bank. For the application review
and analysis of hydraulic condition for this block system, hydraulic physical modeling was carried out. The physical
model was built as a scale of 1:50 by Froude similitude measuring the water levels and the water velocities for
vegetation application or not. In consequence, the water velocities were observed to decrease meanly 10.1%, and the
water depths were to increase meanly 17.8% in case of the of design flood, Q=200m³/sec. To verify the hydraulic
physical modeling, the numerical modeling should be conducted for a close examination of vegetation application
by one or two dimensional numerical analysis as a next study.