The article represents an assessment of suspended sediments formed in the river of small, medium and large river of Northern Development Region of the Republic of Moldova. Main materials were considered time series of hydrologic monitoring network maintained by State Hydrometeorological Service of the Republic of Moldova. Main results show that suspended sediments of the Dniester river measured at Hrusca station were reduced under the impact of Dniester Hydropower Complex by 16 times, at present their value being in average of 14 kg/s, and turbidity of 51 g/m3. Suspended sediments of the Prut river are equal to 7,9 kg/s with a decreasing tendency. The same tendency is specific also for the case of small and medium river. Sediments reduction means lower fluvial processes and dynamics of river beds.