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Rajiv Dummugudem Lift Irrigation Scheme (edit)
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[[File:NagarjunaSagarLeftCanal.JPG|right|thumbnail|200px|Nagarjuna Left Canal deep cut]] | [[File:NagarjunaSagarLeftCanal.JPG|right|thumbnail|200px|Nagarjuna Left Canal deep cut]] | ||
==Existing weir== | ==Existing weir== | ||
Dummugudem weir across the [[Godavari River]] was constructed nearly 150 years back by the famous British India engineer Sir [[Arthur Cotton]] who also constructed [[Dowleswaram Barrage | | Dummugudem weir across the [[Godavari River]] was constructed nearly 150 years back by the famous British India engineer Sir [[Arthur Cotton]] who also constructed [[Dowleswaram Barrage|Dowleswaram]] and [[Prakasam Barrage|Prakasam]] barrages.<ref>{{Cite news|url=http://www.thehindu.com/news/cities/Vijayawada/protest-against-demolition-of-anicut/article4057783.ece|title=Protest against 'demolition' of anicut|newspaper=The Hindu|date=2 November 2012}}</ref> The purpose of this weir was not for diverting the river water into canals but to use as cross over bridge during lean flow season. This weir has lost its relevance after construction of all weather road bridge near [[Bhadrachalam]] town to cross the river. A 24 MW hydroelectric station is constructed to use the level drop available across the Dummugudem weir.<ref>{{cite web|url= http://www.slsgroup.co.in/dummagudem.html |title= Dummagudem hydel project |accessdate=19 July 2017}}</ref> | ||
==Jyothi Rao Pule Dummugudem Nagarjunasagar Sujala Sravanthi Project== | ==Jyothi Rao Pule Dummugudem Nagarjunasagar Sujala Sravanthi Project== | ||
{{See also |Nagarjuna Sagar Dam # Godavari water transfer via Nagarjuna Sagar left canal}} | {{See also |Nagarjuna Sagar Dam # Godavari water transfer via Nagarjuna Sagar left canal}} | ||
This project is also called Dummugudem to Sagar tail pond lift canal project. The canal starts from Dummugudem pond at {{Coord|17|57|43|N|80|51|31|E|name=Anantharam}} to [[Nagarjuna Sagar tail pond]] located across the [[Krishna River]]. This lift canal is an inter river basin transfer link by feeding Godavari river water from the Dummugudem pond to Krishna river basin to the extent of 165 [[tmcft]]. The total length of the canal is 244 km and the capacity of the canal is 22,000 [[cusec]]s to feed 165 tmcft water in three months duration of the monsoon season. Presently, the canal is planned to terminate at {{Coord|16|47|19|N|79|19|03|E|name=Halia}} by feeding the water into the Halia river to reach the downstream Nagarjuna Sagar tail pond. The required pumping head is 128 meters for the elevation difference of 30 meters between Dummugudem pond (45 [[Mean sea level|MSL]]) and Nagarjuna Sagar tail pond (75 MSL). Dummugudem pond to Nagarjuna Sagar tail pond link canal is entirely located in [[Telangana State]] and needs to be routed through high lands which necessitated more pumping head.<ref name=dummu/> | This project is also called Dummugudem to Sagar tail pond lift canal project. The canal starts from Dummugudem pond at {{Coord|17|57|43|N|80|51|31|E|name=Anantharam}} to [[Nagarjuna Sagar tail pond]] located across the [[Krishna River]]. This lift canal is an inter river basin transfer link by feeding Godavari river water from the Dummugudem pond to Krishna river basin to the extent of 165 [[tmcft]]. The total length of the canal is 244 km and the capacity of the canal is 22,000 [[cusec]]s to feed 165 tmcft water in three months duration of the monsoon season. Presently, the canal is planned to terminate at {{Coord|16|47|19|N|79|19|03|E|name=Halia}} by feeding the water into the Halia river to reach the downstream Nagarjuna Sagar tail pond. The required pumping head is 128 meters for the elevation difference of 30 meters between Dummugudem pond (45 [[Mean sea level|MSL]]) and Nagarjuna Sagar tail pond (75 MSL). Dummugudem pond to Nagarjuna Sagar tail pond link canal is entirely located in [[Telangana State]] and needs to be routed through high lands which necessitated more pumping head.<ref name=dummu/> | ||
If this canal were to be terminated in to deep cut portion of [[Nagarjuna Sagar Dam|Nagarjuna Sagar]] left canal near {{Coord|16|44|41|N|79|16|59|E|name=Alwala}}, water can reach by gravity to the Nagarjuna Sagar reservoir when its water level is at minimum draw down level of {{convert|155|m|ft|0}} MSL. It is more economical and purposeful to install a pump house drawing water from the deep cut portion of the canal to pump water up to Nagarjuna Sagar full reservoir level at {{convert|180|m|ft|0}} MSL with nearly 27 meters lift. Thus it is a viable project by eliminating the need of lifting water by 80 meters from tail pond to the Nagarjuna Sagar reservoir. This saved pumping head can be used to pump water from the Nagarjuna Sagar reservoir to [[Srisailam Dam|Srisailam reservoir]] for supplying irrigation water to Kalwakurthi lift irrigation Scheme, Srisailam left bank canal, Dindi lift irrigation scheme, Palamuru lift canal, Nettampadu lift, Bhima lift, etc located in Telangana with 100% water dependability for all the projects drawing water from the Krishna river.{{fact|date=February 2020}} | If this canal were to be terminated in to deep cut portion of [[Nagarjuna Sagar Dam|Nagarjuna Sagar]] left canal near {{Coord|16|44|41|N|79|16|59|E|name=Alwala}}, water can reach by gravity to the Nagarjuna Sagar reservoir when its water level is at minimum draw down level of {{convert|155|m|ft|0}} MSL. It is more economical and purposeful to install a pump house drawing water from the deep cut portion of the canal to pump water up to Nagarjuna Sagar full reservoir level at {{convert|180|m|ft|0}} MSL with nearly 27 meters lift. Thus it is a viable project by eliminating the need of lifting water by 80 meters from tail pond to the Nagarjuna Sagar reservoir. This saved pumping head can be used to pump water from the Nagarjuna Sagar reservoir to [[Srisailam Dam|Srisailam reservoir]] for supplying irrigation water to Kalwakurthi lift irrigation Scheme, Srisailam left bank canal, Dindi lift irrigation scheme, Palamuru lift canal, Nettampadu lift, Bhima lift, etc located in Telangana with 100% water dependability for all the projects drawing water from the Krishna river.{{fact|date=February 2020}} | ||