It was built on the Stonávka River in 1955–1964 on an area of 2.68 km2 (1.03 sq mi).

[1] Construction of the dam had major impact on the municipality of Těrlicko.

Těrlicko was eventually transformed into a village with many tourist attractions.

The reservoir is a popular spot for water sports, and is also used to supply water for nearby coal mines and Třinec Iron and Steel Works.

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