SRSP Flood Flow Canal

SRSP Flood Flow Canal (Telugu:శ్రీరాంసాగర్ వరద కాలువ) also known as Sriram Sagar Flood Flow Canal (SRSP FFC), is a 130 km long gravity canal from Sriram Sagar Project, Sangam Village, Nizamabad District to Mid Manair Dam, Manwada Village, Karimnagar District, Telangana.[1][2]

SRSP Flood Flow Canal
Native nameశ్రీరాంసాగర్ వరద కాలువ
Location
CountryIndia
Physical characteristics
SourceSriram Sagar reservoir
 • coordinates18°54′54″N 78°20′32″E
 • elevation326 m (1,070 ft)
MouthMid Manair reservoir
Length130 km (81 mi)
Discharge 
 • locationSriram Sagar reservoir
 • average623 m3/s (22,000 cu ft/s)

History

This Canal initiated as part of Sriram Sagar stage-II in which the foundation stone was laid by the former Prime Minister P. V. Narasimha Rao in 1991. With this Canal the surplus water from Sriram Sagar Project can be taken into Mid Manair Dam to utilize another 25 tmcft and also it can be used to fill the Lower Manair Dam at Karimnagar City.

Canal construction was completed by July 2010, It was open in Aug 2010 after couple of trials. Canal is currently using to fill Lower Manair Dam as Mid Manair is under construction.[3]

It has been designed in such way that it will discharge 22000 cusecs water (Max Capacity), which means it can carry 50 tmcft water into Mid Manair (26 tmcft) and Lower Manair (24 tmcft) reservoirs in just 25 days at its full canal capacity (i.e. 2 tmcft per day).

Canal remodelling

The canal's full supply level (FSL) is 1,070 feet (326 m) MSL with 1,091 feet (333 m) MSL full reservoir level of Sriram Sagar reservoir. So the flood canal can be used only if the water level is above 1070 feet. The flood canal is not in use in most of the years as the water inflows in to the Sriram Sagar reservoir is not adequate to build up the level to 1070 ft. As an alternative, Yellampalli Lift Canal from Yellampalli Project is under construction with which water will be lifted into Flood Flow Canal at Gangadhara to feed Mid Manair Dam.[4]

In fact, by re-engineering of this defunct canal to reverse its flow direction by raising its bank levels and installing low head high flow concrete volute pumps at existing major aqueducts, at balancing reservoirs & at Sriram Sagar reservoir inlet point, Godavari flood waters during monsoon months from the Pranahita Chevella lift can be stored in the 110 tmcft gross storage capacity of Sriram Sagar reservoir for use during the dry months.[5][6] The stored water can be released back into Kakatiya Canal by gravity from the Sriram Sagar reservoir for use in the command area of SRSP as well as Pranahita Chevella projects when adequate water is not available in the lower Godavari basin during dry seasons. Also remodelled SRSP flood canal can be used for supplying water by gravity for irrigating nearly 300,000 acres on its both sides by the water supplied from the Pranahita Chevella project. To facilitate this remodelling in future, the single lift (96 MWC) envisaged from Myadaram tank to the SRSP flood flow canal should be split into two lifts (76 + 20 MWC) via Kakatiya canal.[7] The re-engineering of this canal is similar to modifications carried out to reverse the water flow of ancient Grand canal under Eastern Route project of South to North Water Transfer in China.[8]

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gollark: Slightly fixed version.
gollark: RSAPI Diagram 2™ will be incursing shortly.
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gollark: The RSAPI Diagram is outdated, so no. I should update it.

See also

References
  1. "FFC from SRSP (Indiramma Flood Flow canal) JI00233". Retrieved 19 July 2015.
  2. "SRSP flood flow canal". Archived from the original on 29 August 2014. Retrieved 19 July 2015.
  3. "Water released into FFC". Retrieved 19 July 2015.
  4. "Pranhita Chevella lift irrigation project progress proposal". Retrieved 15 May 2013.
  5. "Sriram Sagar(Srsp)/ Pochampad Dam D00921". Retrieved 19 July 2015.
  6. "Telangana government sanctions Rs 1,067 crore for lifting water to SRSP". Retrieved 18 June 2017.
  7. "Slide 27, Pranhita Chevella lift irrigation project progress proposal". Retrieved 15 May 2013.
  8. "Eastern Route project of South to North Water Transfer in China". Retrieved 19 July 2015.
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