Kherkatta Dam

Kherkatta Dam is a medium irrigation project built across the Kotri River, about 10 km (6.2 mi) northwest of Kapsi in the Kanker district of Chhattisgarh, India. It is the largest dam of the district and gets its name from the neighbouring village of Kherkatta. The lake that the dam forms behind it is officially known as the Paralkot Reservoir, which extends in a northwest direction and partially into the Mohla-Manpur-Ambagarh Chowki district. The distance of the dam is approximately 20 km (12 mi) from Pakhanjur, 35 km (22 mi) from Manpur and 110 km (68 mi) from Kanker.[1][2]

Kherkatta Dam
Floodgates of Kherkatta Dam
Kherkatta Dam is located in Chhattisgarh
Kherkatta Dam
Location of Kherkatta Dam in Chhattisgarh
Kherkatta Dam is located in India
Kherkatta Dam
Kherkatta Dam (India)
Coordinates20°9′17.25″N 80°38′32.21″E
Construction began1966
Opening date1981
Construction cost₹5.46 crore (US$680,000) in 1964
Dam and spillways
Type of damEmbankment, earth-fill
ImpoundsKotri River
Height20 m (66 ft)
Length610 m (2,000 ft)
Reservoir
CreatesParalkot Reservoir
Total capacity6,550,000 m3 (5,310 acre⋅ft)

The construction of the dam began in 1966 and was completed in 1981 by the Dandakaranya Development Authority, over a period of 15 years. The total cost of construction was estimated at ₹5.46 crore (US$680,000).[3][4] It was handed over to the state government in the year 1986 and placed under the Kapsi Water Resource Subdivision for its upkeep and maintenance.[5]

Construction details

The length of the dam is 610 m (2,001 ft), the height above the lowest foundation is 20 m (66 ft) and the highest flood level is 291.23 m (955 ft). Spread over an area of 1,300 acres (530 ha), its gross storage volume is 6,550,000 m3 (5,310 acre⋅ft) and designed max. irrigation area is 24,011.23 acres (9,717.00 ha).[6]

Benefits

The Kherkatta dam[7] was built in hopes of benefiting the locals with better irrigation and cultivation systems.[8] The reservoir consists of two major gates which release water every couple of years through its canals. The artificial lake is used to store water.[9]

  • Local water supply
  • Distant water supply, if water is sent to cities via aqueducts
  • Local source of fishing & boating
  • Wildlife habitat
  • Increased water pressure for those living in the valley
  • Power generation
  • Irrigation
  • Flood water control

Ichthyofaunal diversity

The survey for Ichthyofaunal diversity study in the Paralkot Reservoir of Kanker District was mainly focused on Ichthyofaunal diversity. 25 Species of fishes belonging to 5 orders 11 family and 20 genera was recorded during the study. Cyprinidae were most dominant group represent by 12 species, Siluridae with 2 species, Ophiocephalidae with 2 species, Bagridae 1 species, Mestacemballidae with 2 species, Saccobranchidae 1 species, Claridae 1 species, Centropomidae 1 species, Notopteridae 1 species, Gobiidae 1 species and Cichlidae 1 species. This was the first ever study on the fish diversity of reservoir and would help in explore the fish fauna of Kherkatta dam.[10]

Low utilization of developed water resources

The actual utilization as compared with the designed potential is very poor, about 69%. The reason could be the low rainfall or the low maintenance of the canal system.[11]

Controversy

In May 2023, a food inspector from Pakhanjur ordered workers at the dam to drain over 2 million litres of water. The government official ordered the water to be drained after he accidentally dropped his phone into the waste weir of the dam while taking a selfie.

Footage of the official sitting under an umbrella as water was pumped out of the reservoir was uploaded to social media. After the video went viral, the food inspector, the SDO of the Kapsi water resource subdivision and a sub-engineer were suspended from their positions.[12]

References
  1. Media Publications, News 18 (14 August 2022). "News 18 Referring the dam name as Kherkatta Dam". News !8. Retrieved 6 April 2023.
  2. Publication, Media (4 June 2022). "Chief minister referring the dam as Kherkatta Dam". Chhattisgarh Jansampark. Retrieved 6 April 2023.
  3. Project. "significance in Dandakaranya". Retrieved 25 February 2015.
  4. Part of Mahanadi River which becomes Kotri river, List of Dams (28 November 2020). "Kherkatta Dam is built on Matholi stream of Khotri river of Mahanadi". Uvtutorial1010. Retrieved 6 April 2023.
  5. without maintainence, Damaged (5 May 2019). "Kherkatta Dam needs repair". Bhumkalsamachar. Retrieved 6 April 2023.
  6. Publications, Report (4 September 2019). "Kherkatta Dam Pariyojna". Joharcg. Retrieved 6 April 2023.
  7. of CG, Exams (5 January 2022). "Question on Kherkatta Dam". harishmanik. Retrieved 6 April 2023.
  8. Life saving, for farmers (30 May 2021). "Saviors for farmers". More life changer. Retrieved 30 May 2021.
  9. Britannica Article. "Works". Retrieved 25 February 2015.
  10. Biolife Journal. Ichthyofaunal Diversity of the Pakhanjore Dam (PDF). Retrieved 21 February 2015.
  11. Low Utilisation of Kherkatta Dam. Water Resources (PDF). p. 9. Retrieved 14 July 2015.
  12. बस्तर, अशोक नायडू (31 May 2023). "Chhattisgarh: जलाशय से 21 लाख लीटर पानी निकालने का मामला, जल संसाधन विभाग के SDO निलंबित". ABP News (in Hindi). Retrieved 2023-08-17.
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