The application of geogrids can be an economical and technologically and ecologically compatible solution for improving the mechanical resistance and stability of the levee. Today, a wide selection of geogrids is available on the market, and the available products differ according to production technology, size and shape of openings, tensile properties, etc. When selecting geogrids for a particular project, two properties are usually considered. radial secant stiffness at small deformations. This work solves the section of slow levees along Trnava that needs to be strengthened with geogrids. The levees along Trnava start from the junction with the main Mura levee and end at the road bridge leading to the old GP Goričan. The length of the left levee is 3.2 km, and the right 3.3 km. The initial elevations of the crown of the levee are connected to the main Mura levee, which is the level of 100 - year high water of the Mura with an overhang of one meter. Reinforcement of slow levees will be performed by single- axis geogrids TENSAR RE520. Leakage analyzes are calculated in the SEEP / W program, stability analyzes in the SLOPE / W program where static and seismic conditions are observed at which the FS safety factor must be bigger than 1, and settlement analyzes in the SIGMA / W program of the Geo-Studio software package. The mentioned analyzes of the levee will be performed on the right profiles of the levee 0 + 440, 1 + 460 and 2 + 460 and on the left profiles 1 + 040, 1 + 840 and 2 + 300. Profiles were selected based on multiple criteria. The criteria were maximum levee height, maximum water level, and relevant geotechnical or hydraulic soil characteristics.