Chester Weir and Salmon Leap, Chester, Cheshire
This weir and former causeway stands across the River Dee. It was originally built in 1093 by Hugh Lupus, first Earl of Chester. It was built for St Werburgh's Benedictine Abbey (now Chester Cathedral). It channelled the water to allow it to power a series of mills along the Dee. These mills were amongst the largest and most valuable in England during the 13th century. They were in use until 1910. The weir was restored in the early 20th century to serve the City Council's hydro-electric power station, which operated between 1913 and 1939.
