photo: E.K.

Width of its course varies from 100-200m in Perucac and Zvornik to 15m in place called Tijesno (Narrow). At Bajina Basta, 544 to 698 m3/s of water flows and water level is 34-356 cm. Water temperature is 8,7-16,3 degrees Celsius. Color of water is mostly green and it is second class of quality.