The Spreča (Serbian Cyrillic: Спреча) is a river of northeastern Bosnia and Herzegovina, a tributary of the Bosna. Its source is located in the village of Snagovo in Zvornik municipality, and it reaches the Bosna at the city of Doboj. A damming of the Spreča in the municipality of Lukavac forms Modrac Lake. The 138.8-kilometre-long (86.2 mi) river also flows through the town of Gračanica.
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