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Anayirangal Dam information


Anayirangal Dam
Anayirangal Dam is located in Kerala
Anayirangal Dam
Location of Anayirangal Dam in Kerala
Anayirangal Dam is located in India
Anayirangal Dam
Anayirangal Dam (India)
Official nameAnayirankal Dam
CountryIndia
LocationIdukki, Kerala
Coordinates10°00′34″N 77°12′27″E / 10.00944°N 77.20750°E / 10.00944; 77.20750
PurposePower
StatusOperational
Opening date1965 (59 years ago) (1965)
Owner(s)Kerala State Electricity Board
Dam and spillways
Type of damEarth fill dam
ImpoundsPanniyar river
Height (foundation)34.13 m (112.0 ft)
Length326.13 m (1,070.0 ft)
Elevation at crest1,207.02 m (3,960.0 ft)
Spillways3 nos, ungated (9.35 × 4.75 m)
Spillway typeOgee type
Spillway capacity348 m³/s
Reservoir
CreatesAnayirankal Reservoir
Total capacity50,680,000 m3 (1.790×109 cu ft)
Catchment area64.92 km2 (25.07 sq mi)
Maximum water depth1,210.07 m (3,970.0 ft)
Normal elevation1,207.02 m (3,960.0 ft)
Panniar Power Station
Coordinates9°58′23″N 77°01′41″E / 9.97306°N 77.02806°E / 9.97306; 77.02806
Operator(s)Kerala State Electricity Board
Commission date1963 (61 years ago) (1963)
Turbines2 × 16.2 MW (Francis-type)
Installed capacity32.4 MW
Annual generation158 MU
Website
Official website

Anayirangal Dam (Malayalam: ആനയിറങ്കൽ അണക്കെട്ട്) is an earthen dam built on the Panniyar river in Chinnakanal and Santhanpara panchayats, 22 km (14 mi) from Munnar in Idukki district of Kerala, India.[1] The dam is surrounded on one side by forest and on the other by Tata Tea Plantation. The dam is located near the Munnar - Kumily road. The water flowing from the dam reaches Kuthungal and Ponmudi dams through the Panniyar river. Power is generated at Kuthungal and Panniyar powerhouses. The dam stores water from small streams flowing from Bealram and rainwater flowing from the hills on the Tamil Nadu border. The height of the dam is 34.14 metres (112.0 ft) and Length is 326.13 metres (1,070.0 ft). The reservoir usually fills up in June and July.[2]

The project is situated in Muthirapuzha basin, a sub basin of Periyar River. The reservoir is created by constructing a dam at Anayirankal. Construction was led by E.U.Philipose, Superintending Engineer, Kerala State Electricity Board. The dam has ungated spill way system. The water stored in the reservoir is released to the river downstream through an outlet. This water is diverted by an overflow barrage at Kuthungal to Kuthungal Power House. After generation of power the water is released to Ponmudi reservoir at the downstream. This water is then diverted to Panniyar Power station located on the left bank of Muthirapuzha and released back to Muthirapuzha River and flows downstream to Kallarkutty reservoir.From there, the river flows through taluks of Udumpanchola, Devikulam, Kothamangalam, Muvattupuzha, Kunnathunadu, Aluva, Kodungalloor, Paravur.[3]

  1. ^ "ANAYIRANKAL DAM – KSEB Limted Dam Safety Organisation". Retrieved 7 July 2021.
  2. ^ "പ്രളയത്തിലും നിറയാതെ ഇടുക്കിയിലെ ആനയിറങ്കൽ ഡാം". Asianet News Network Pvt Ltd (in Malayalam). Retrieved 7 July 2021.
  3. ^ Wilson, James (13 August 2018). "Understanding the 42-year-old Idukki dam which is now saving Kerala". The Print.

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