Mountain and foothill regions of Uzbekistan in the winter-spring period are the subject to erosion as a result of precipitation and mudflows. This fact led to the beginning of their strengthening with gabion structures. Gabions also improve the operation of the entire structure under the dynamic influences’ action, including the seismic ones. In the work, research and testing in the laboratory and field conditions of the erected gabions effectiveness in road construction in the Parkent district of Tashkent region. The analysis of the gabion structures main structural parameters’ influence to strengthen the subgrade on their stability and deformability has been performed. Reinforcement of the road subgrade 4P187 “Kiziltof sh. - Parkent sh. (59 km) - Kumushkon” was performed with box-shaped gabion structures. This road stretch from the stake PK80 to PK90 was blurred as a result of mudflow. To strengthen this slope, a local program for its targeted strengthening has been approved. As the initial conditions for the considered site survey, the work to determine the physical and mechanical properties of soils lying in the road slope has been carried out.