The Tumbling Weir is a circular weir in the town of Ottery St. Mary, Devon, England that allows water from a leat or man-made stream to reach the River Otter.
It is apparently a rare design in that the water enters through a circular opening at the top that is surrounded by the stream. The water then cascades down some more smaller rings until it enters a culvert which enters a tunnel under the nearby path before sluicing down to the river a few metres away.
Wikipedia https://en.wikipedia.org/wiki/Tumbling_Weir
Address 103 Mill Street, Ottery Saint Mary EX11 1AJ, United Kingdom
Coordinates 50°45'1.995" N -3°17'5.108" E
