| Radunia | |
|---|---|
 Radunia River near the village of Lniska | |
  Location of the mouth in Poland | |
| Location | |
| Country | Poland |
| Voivodeship | Pomeranian |
| Physical characteristics | |
| Source | |
| • coordinates | 54°10′57″N 17°56′31″E / 54.18250°N 17.94194°E |
| Mouth | |
• location | Motława |
• coordinates | 54°18′41″N 18°41′07″E / 54.311314°N 18.685219°E |
| Basin features | |
| Progression | Motława→ Martwa Wisła→ Baltic Sea |
The Radunia (German: Radaune; Kashubian: Reduniô) is a small river in Kashubia (Pomerelia) in northern Poland, which issues from a lake and falls into the Motława near the city of Gdańsk.
Part of its water is conveyed into the city via the 13.5 km long Radunia Canal[1] (Kanał Raduni (pl) / Radaunekanal (de)) or New Radaune,[2] a canal built in the 14th century by Teutonic Knights, to provide water and power to operate the Great Mill.
Its source is Lake Stężyckie near Stężyca. Near Krępiec, the Radunia joins the Motława, a tributary to the Vistula in Gdańsk. The length of the Radunia is 103,2 km, area 837 km², with a height difference of 162 m. Places along the river are Żukowo and Pruszcz Gdański, with 22,000 inhabitants.
From 1910 to 1937, eight water power stations were built, delivering 14 MW in total.
- ^ The Radunia Canal is a historical canal constructed in the Middle Ages, in the XIV century, by the Teutonic Knights - in Roumen Arsov, Jiri Marsalek, Evzen Zeman: Urban Water Management: Science, Technology, and Service Delivery, p. 117 (Scheme of hydrographical network in Gdansk) [8] [1]
- ^ A Gazetteer of the World: Or, Dictionary of Geographical Knowledge, edited by Royal Geographical Society Great Britain, 1856, and The Edinburgh Gazetteer, Or Geographical Dictionary, 1822 [2]