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Weir across a river to regulate its flow
View of Marsh Lock weir at river Thames, Henley-on-thames, UK
Water storage to prevent flooding in the Eendragtspolder where 4 million cubic meter water can be stored to prevent high water in Rotterdam, the Netherlands
Cambridge punts in Spring stored above the weir at Mill Lane punt Station.
Partially open lock gate at a rural canal
View of the sluice gate in the harbour at low tide, West Bay, Dorset, UK, Europe.
Ontario, Canada.
a weir in a river with a tree hanging above, a meadow in the background
Seoul, South Korea: small artificial waterfall at the start of the Cheonggye Stream (Cheonggyecheon) - an 11km long stream flowing west to east through downtown - it was under asphalt for decades but came to the light of day again in a remarkable urban renewal project - Jongno.
Atlantic salmon (Salmo salar) jump out of the water at the Shrewsbury Weir on the River Severn in an attempt to move upstream to spawn. Shropshire, England.
St Catherine's Lock River Wey near Guildford Surrey England Europe
Maidenhead, England - July 21, 2019: the River Thames passes rapidly over this weir, one of only 50 weirs remaining today on the Thames. A weir of one kind or another has stood on this particular site for over 600 years. Today, the weir maintains water levels so that boats and other river craft can pass through the adjacent lock, as well as controlling land drainage. The large sluices on Boulter's Weir are called 'buck gates'; a buck was a huge willow basket used to catch eels positioned upstream on the river.
Bonneville Dam on the Columbia River, Oregon.
An aerial view of the weir on the River Thames at Mapledurham in Oxfordshire, UK
Canal near James River in Virginia
Grand Union Canal at Hatton Locks Warwickshire England UK. It is a sunny summer day and the canal is still. Summer colours line the bank. There are no recognisable people in the picture.
closed lock
The backwaters of the River Cam used for punting in the summer months.
ancient hydraulic structure on a shipping canal
Water flows out through spillways on the lower ends of fish hatchery holding tanks.
A fast flowing waterfall against the backdrop of a forest on the river bank.
water pollution
A closeup of the flowing water. Water pouring into the pool. Chatillon-en-Bazois, Nievre, Burgundy, France
The stream \
The weir and locks across the River Thames at Mapledurham, Berkshire near Reading.
River Wey riverside lovely sunny summer day Guildford Surrey England Europe
Canal du Midi in Toulouse, France, is featured in spring. The tree leaves are light green, and the tree trunks are covered in moss. There is a dirt walking path along the canal. The water in the canal looks green because of the reflection from the trees.
Close up view of canal locks in the centre of Manchester
Free Images: "bestof:Kelston lock weir.JPG en wikipedia 2009 November 2 The weir at Kelston Lock Taken by Rod Ward August 2006 Transferred from http //en wikipedia org en wikipedia;"
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