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Dam and spillways; Length: 791 m (2,595 ft) [1] View of Yamuna River from barrage. The Okhla barrage (Okhla Weir and Okhla bridge) [2] is a 791 meters [1] ...
A barrage dam can be used to divert water for irrigation needs or limit the amount of water downstream. In most cases, a barrage dam is built near the mouth of the river. The site of dam construction needs to be thoroughly investigated to ensure that the foundation is strong enough to support the dam and has low possibility of failing. [2]
A side channel of the river with a weir and falling shutters regulated the canal waters. [9] A bridge with 23 arched openings 10 feet wide was constructed for this purpose. [ 10 ] [ 11 ] Modern commentators also note that the canal was constructed with an excessive slope of 0.05 m/km which caused erosion of its bed.
A drop structure, also known as a grade control, sill, or weir, is a manmade structure, typically small and built on minor streams, or as part of a dam's spillway, to pass water to a lower elevation while controlling the energy and velocity of the water as it passes over.
A weir / w ɪər / or low-head dam is a barrier across the width of a river that alters the flow characteristics of water and usually results in a change in the height of the river level. Weirs are also used to control the flow of water for outlets of lakes, ponds, and reservoirs.
The New Ohkla Barrage is a weir impounding the Yamuna River, southeast of New Delhi. The nature of the Yamanu River has changed substantially since the British built the original Okhla barrage in 1874. The river was known for its fish abundance. Today the river is fed mostly by the outflow of water treatment plants.
The Lower Chenab Canal originates from the Barrage carrying about 11,600 cusecs of water. The weir originally was a shuttered type weir comprising 8 spans of 500 ft each and was first one in Punjab which was built upon alluvial soil. The weir got repeatedly damaged in portions and had to be remodeled extensively during 1919-1920 and 1933–1935.
The Bhimgoda Barrage, also referred to as the Bhimgoda Weir or Bhimgoda Head Works, is a barrage on the Ganges River at Har ki Pauri near Haridwar in Haridwar district, Uttarakhand, India. Built as the headworks of the Upper Ganges Canal , an initial barrage was completed by 1854 and replaced twice; the final one completed in 1983.