udriaciu

Udriaciu is a river in the Minsk Region of Belarus, a tributary of the Neman.

It begins in the Dzyarzhynsk woods at 240 metres above sea level and flows 52 kilometres southwards before joining the Neman near Soligorsk.

The river is characterised by clear, slow‑moving waters, sandy banks and a riparian zone dominated by alder and willow.

It supports fish species including pike, perch and European trout.

Its basin covers 300 square kilometres and comprises mixed forest, farmland and moorland.

The Udriaciu watershed supplies water for irrigation and domestic use in surrounding villages such as Chervon and Linsk.

In the 19th century, small mills operated along its banks; today the area is part of the conservation plan of the Soligorsk Nature Reserve.

The river's name originates from the old Slavic term "udria", meaning "to flow" combined with the suffix "-cijū". It has been documented in medieval charters under varieties including Udriaci and Udriaciu.

The Udriaciu is monitored by the Belarusian Ministry of Ecology for water quality; recent assessments show satisfactory levels of biodiversity but highlight increasing pollution from nearby agricultural runoff.

Conservation measures include restoration of riparian vegetation and regulation of industrial effluents.