Characteristics
Like the Velika Morava, the Drina is also a meandering river, with a very high meandering ratio (175:346), still slightly less than that of Velika Morava.
The Drina is a very fast river with cold and greenish water, which is from the limestone that underlays the area in which the river carved its bed.
Its average depth is 3 to 5 m (10–15 ft), the deepest being 12 m (40 ft) at Tijesno. On average, the Drina is 50–60 m (160–200 ft) wide, but it ranges from only 12–20 m (40–65 ft) at Tijesno to up to 200 m (650 ft) at Bajina Bašta and Ljubovija.
The drainage basin covers 19,570 square km (4.8 million acres), branching into Bosnia and Herzegovina, Serbia, Montenegro, and Albania. The Drina belongs to the Black Sea drainage basin.
Before it was regulated by the several power stations, the Drina used to flood its valley. The most disastrous flood occurred in 1896, which destroyed the town of Ljubovija.
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