Sammakka Sagar Barrage

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Sammakka Sagar Barrage
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Sammakka Sagar Barrage at Thupakulagudem
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Sammakka Sagar Barrage (India)
Official nameSammakka Sagar Barrage
CountryIndia
LocationThupakulagudem village, Eturnagaram mandal, Mulugu district, Telangana
Coordinates 18°35′10″N80°23′36″E / 18.58611°N 80.39333°E / 18.58611; 80.39333
PurposeMulti-purpose
StatusUnder construction
Construction beganFebruary 2017
Opening dateJune 2021 (Signifies date of water impounding, not yet formally inaugurated)
Construction cost2,121 Crores
Built byRithwik Projects Private Limited
Owner(s) Government of Telangana
Operator(s)Irrigation & CAD Department, Government of Telangana
Dam and spillways
Type of dam Barrage
Impounds Godavari River
Height83 meters
Length1,132 meters
Spillways 48 (Radial lift gates)
Spillway capacity8,50,000 Cusecs
Reservoir
CreatesSammakka Sagar
Total capacity6.94 TMC
Sammakka Sagar Hydro Electric Project
Operator(s) Telangana Power Generation Corporation (TGGENCO)
Commission dateProposed
Type Run-of-the-river
Turbines 10 Units of 24MW
Installed capacity 240 MW
Annual generation 786 MU (at 50% dependability) or 317 MU (at 90% dependability)

Sammakka Sagar Barrage [1] [2] [3] [4] (or Thupakulagudem Barrage) is a barrage across Godavari River at Thupakulagudem Village, Eturnagaram Mandal, Mulugu District of Telangana State. It stabilizes the existing irrigated area of 2,51,310 Hectare under J. Chokka Rao Devadula Lift Irrigation Scheme and 3,04,000 hectares of Sriram Sagar Project stages I & II with 50 TMC of water. [5] Another 50 TMC will be used for providing drinking water to villages en route.

Sammakka Sagar Hydro Electric Project has been planned for generation of 240MW (10 units of 24MW) through run-of-the-river generation. This hydro electric project is expected to be completed by Telangana Power Generation Corporation (TGGENCO).

History

This barrage was earlier referred to as Kanthanapally Barrage [6] and it was proposed at 17 km downstream of the existing J. Chokka Rao Devadula Lift Irrigation pump house with Full Reservoir Level (FRL) at +85.0 meters. The barrage would've been constructed at narrow gorge on Godavari river at Kanthanapally village ( 18°27′40.22″N80°24′35.24″E / 18.4611722°N 80.4097889°E / 18.4611722; 80.4097889 (Thupakulagudem Barrage Original Location) ) but this would've led to submergence of about 4 villages fully and 11 villages partially. Potential land acquisition hurdles were also expected, as this would require acquisition of 7789.42 hectares of land. This barrage was earlier part of P V Narasimha Rao Kanthanapally Sujala Sravathi Project (PVNRKSSP).

In 2016, in order to avoid issues related to submergence and land acquisition, Government of Telangana decided to construct Thupakulagudem Barrage at the present location, which is 3 km downstream of the existing J. Chokka Rao Devadula Lift Irrigation pump house with FRL of +77.0 meters. At this location, there is no large land submergence with only river bed of 580.18 hectares and 94 hectares of surrounding land will get submerged. This would provide pondage for drawing the water for J. Chokka Rao Devadula Lift Irrigation scheme.

On February 13, 2020, Thupakulagudem Barrage was officially renamed as Sammakka Barrage, [2] [7] after tribal warrior goddess Sammakka. The boundary of Eturnagaram Wildlife Sanctuary is located at the close proximity from this barrage, where biennial festival of Sammakka Saralamma Jatara is held honour the Hindu tribal goddesses Sammakka.

In Spring 2021, the civil works of the barrage were mostly completed [8] and subsequently in June, 2021 [9] the process of impounding water into barrage commenced. At an FRL of +85 meters, 6.94 TMC of water is expected to be stored whereas, at reservoir level of 70 to 71 meters 2.90 TMC of water is expected to be stored. J. Chokka Rao Devadula Lift Irrigation Project uses water from 71 meters.

The works pertaining to Sammakka Hydro Electric Project are yet to be started by Telangana State Power Generation Corporation Limited and only civil works pertaining to the intake penstock gates has been reported to completed.

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References

  1. "Green Panel Gives Nod to Telangana's Rs 2,121 Cr Dam Project On Godavari". NDTV.com. Retrieved 2021-01-21.
  2. 1 2 "Telangana CM names Tupakulagudem barrage after tribal warrior goddess Sammakka". The New Indian Express. Retrieved 2021-01-21.
  3. "Tupakulagudem Barrage, Near : Eturnagaram Mandal, Warangal Dist - Projects - Rithwik Projects Pvt. Ltd". www.rithwikprojects.com. Retrieved 2021-01-21.
  4. Kasara, Venu (2021-08-01). "వరంగల్‌ జిల్లా వరదాయిని సమ్మక్కసాగర్‌ ప్రాజెక్టు". తెలంగాణ. Retrieved 2023-02-22.
  5. "Smitha Sabharwal tells officials to expedite barrage works". Telangana Today. 22 November 2019.
  6. D. Chandrabhaskar Rao. "Telangana from perennial drought to brimming reservoirs". Telangana Today. Retrieved 2021-01-21.
  7. "Council of Ministers for Telangana Government renames barrages". Chief Ministers Office, Telangana (Twitter).
  8. "Cap Sammakka barrage works: Smita Sabharwal". Telangana Today. 11 May 2021.
  9. "జూన్‌లో 'సమ్మక్క సాగర్‌' జాతికి అంకితం". Sakshi (in Telugu). 2021-05-16. Retrieved 2021-08-12.