The paper is focused on the application of space and ground monitoring technologies to a problem of spring floods that is vital for providing safe transportation in the adjoining area. The following are main topics discussed in the paper: data necessary for flood monitoring, flood monitoring technologies and approaches as well as flood forecasting systems. The particular focus is on the application of the developed flood monitoring system to the situation of flood forecasting in the Daugavpils city (Latvia) on the Daugava river. The explored study illustrates a synergetic effect of integration space and ground monitoring technologies for solving natural problems by this allowing prediction and evaluation of natural disasters as floods.