>BrownHairedGirl at 00:35, 4 April 2021

2021-04-04T00:35:06Z

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{{Use dmy dates|date=December 2014}}
{{Use Indian English|date=December 2014}}
{{Infobox dam
| name = Aliyar Reservoir/Aliyaru Reservoir
| name_official =
| image = Aliyar-Dam-TopView.jpg
| image_size =
| image_caption = Aerial view of Aliyar Reservoir, Dam at top
| image_alt =
| location_map = Tamil Nadu
| location_map_size =
| location_map_caption = Location of the Aliyar Reservoir in Tamil Nadu
| coordinates = {{coord|10.4739|N|76.9728|E|region:IN_type:landmark|display=inline,title}}
| country = [[India]]
| location = [[Coimbatore District]], [[Tamil Nadu]]
| purpose =
| status =
| construction_began =
| opening = 1962
| demolished =
| cost =
| owner =
| dam_type = [[Gravity dam]]
| dam_height = {{convert|235|ft|m|0|abbr=on}}
| dam_height_thalweg =
| dam_height_foundation=
| dam_length =
| dam_width_crest =
| dam_width_base =
| dam_volume =
| dam_elevation_crest =
| dam_crosses =
| spillway_count =
| spillway_type =
| spillway_capacity =
| res_name = Aliyar Reservoir
| res_capacity_total = 3864.00 m.cft
| res_capacity_active =
| res_capacity_inactive=
| res_catchment = {{convert|468.8|km2|abbr=on}}
| res_surface = {{convert|6.48|km2|abbr=on}}
| res_elevation = {{convert|320|m|ft|abbr=on}}
| res_max_depth = {{convert|36.5|m|ft|abbr=on}}
| res_max_length =
| res_max_width =
| res_tidal_range =
| plant_operator = [[Tamil Nadu Generation and Distribution Corporation Limited]]
| plant_commission = Unit 1: 21 March 1970 <br> Lower Aliyar Dam Unit 2: 23 September 2002
| plant_decommission =
| plant_type =
| plant_turbines = 1 x 60 MW <br> 2 x 1.25  MW <ref>https://www.tangedco.gov.in/hydrokadam.html#aliyar</ref>
| plant_capacity = 62.50 MW
| plant_annual_gen =
| website =
| extra =
}}
'''Aliyar ({{lang|ta|ஆழியாறு)}} {{transl|ta|ISO|''(also spelt Azhiyar / Aaliyar''}}) Reservoir''' is a {{convert|6.48|km2|abbr=on|1}} [[reservoir]] located in [[Aliyar (Village)|Aliyar village]] near [[Pollachi]] town in [[Coimbatore District]], [[Tamil Nadu]], [[South India]]. The dam is located in the foothills of [[Valparai]], in the [[Anaimalai Hills]] of the [[Western Ghats]].<ref name="covaimart">{{Cite web |url=http://www.covaimart.com/param.html |title=Aliyar Dam. |access-date=3 June 2008 |archive-url=https://web.archive.org/web/20071013094622/http://covaimart.com/param.html |archive-date=13 October 2007 |url-status=dead |df=dmy-all }}</ref> It is about {{convert|65|km}} from Coimbatore. The dam offers some ideal getaways including a park, garden, aquarium, play area and a mini Theme-Park maintained by Tamil Nadu Fisheries Corporation for visitors enjoyment. The scenery is beautiful, with mountains surrounding three quarters of the reservoir. Boating is also available.<ref name="Coimbatore">[http://www.coimbatore.com/pollachi/dams.htm Pollachi Dams]</ref>

==History==
The Aliyar Dam was constructed during 1959-1969 across the [[Aliyar|Aliyar river]], mainly for [[irrigation]] purposes. Aliyar Dam was inaugurated on 2 October 1962 ( Gandhi Jayanti day) by then Prime minister of India Pandit Jawaharlal Nehru, K Kamaraj, the CM of TN state presided over the function. The project was commissioned in September 2002 to generate [[Hydropower|Hydro Electric Power]].

==Hydrography==
[[File:Aliyar Reservoir.JPG|thumb|Island in Aliyar Reservoir, Dam in background]]
Aliyar lake receives water from Upper Aliyar Reservoir through the [[hydroelectric]] power station in [[Navamali]] and the [[Parambikulam Dam|Parambikulam reservoir]] through a contour canal. Aliyar dam, built as a part of Parambikulam aliyar project (PAP), retains a large reservoir.<ref name="Coimbatore"/> The dam is around {{convert|2|km}} in length.

The lowest level outlet of the reservoir is {{convert|930|ft}} above [[Mean Sea Level]] (MSL) and the canal intake is {{convert|980|ft}} above MSL. The [[spillway]] is {{convert|1040|ft}} above MSL and the FRL (Full Reservoir Level) is {{convert|1050|ft}} above MSL. The maximum surface area is {{convert|48|ha}} (1,600 acres). The volume of water at FRL is 3.864 [[Tmcft]] ({{convert|88705|acre.ft|m3|lk=in}}). The maximum depth is {{convert|41|m}} and the mean depth {{convert|16.8|m}} . The volume development is 1.2 m. The highest inflow usually occurs during July and August. The shoreline is poorly indented, the shore development is poor and shallow and the [[Aquatic plant]]s and [[limnology]] of the [[littoral zone]] is also very limited.<ref name="aquatic">[http://resources.metapress.com/pdf-preview.axd?code=u312771t08143008&size=largest Limnological studies on parambikulam Aliyar-project-I Aliyar Reservoir (Madras State), India] {{Webarchive|url=https://web.archive.org/web/20110714080837/http://resources.metapress.com/pdf-preview.axd?code=u312771t08143008&size=largest |date=14 July 2011 }}
Journal Aquatic Sciences - Research Across Boundaries, Birkhäuser Basel, ISSN 1015-1621 (Print) 1420-9055 (Online), Volume 32, Number 2 /, September, 1970, DOI 10.1007/BF02502556, pp 405-417, SpringerLink, 11 October 2006</ref>

==Fisheries==
Ailyar reservoir was studied by the [[Indian Council of Agricultural Research#ICAR Institute.5B5.5D|Central Inland Fisheries Research Institute]] ([http://www.cifri.ernet.in/ CFRI]) for eleven years from 1982 to 1992. The rate of energy conversion at primary producer level and at the fish production level at Aliyar is considered higher than in any other Indian reservoir. The [[indigenous (ecology)|indigenous]] fish of the reservoir includes 40 species belonging to 13 families, plus seven stocked species<ref name="FAO">{{cite book|last=Sugunan|first=V.V. |author2=Fisheries and Aquaculture Department|title=Reservoir fisheries of India|publisher=[[FAO]]|year=1995|series=Fisheries Technical Paper T345 1995 |chapter=2. TAMIL NADU (Continued) 2.7 ALIYAR RESERVOIR|isbn=92-5-103673-X|url=http://www.fao.org/docrep/003/V5930E/V5930E04.htm}}</ref>

== Hydel Power Project ==
[[File:AliyarReservoir.jpg|thumb|right|A panoramic view of the Aliyar Reservoir]]
This project consists of a series of dams interconnected by tunnels and canals for harnessing the waters of the Parambikulam, Aliyar, Sholiyar, Thunakadavu, Thekkadi and Palar rivers, flowing at various elevations, for irrigation and power generation. The scheme is an outstanding example of engineering skill. At present, the discharges are being let down through three sets of sluices/ canals, viz., Pollachi Canal, Vettaikaranpudur Canal and the river sluices. Under this scheme, the irrigation discharges let down through river sluices of the Aliyar Dam utilized for power generation in a power house at the toe of the dam. Being a micro hydel scheme, this project is subsidized by the Ministry of Non-conventional Energy Sources, [[Government of India]].

==Visitor information==
[[File:AliyarDamGarden.JPG|thumb|right|View of park garden from top of the dam]]
Aliyar dam is a popular tourist destination.<ref>{{cite news | url=http://www.dinamalar.com/district_detail.asp?id=121814| title=சுற்றுலா பயணிகள் குவிந்ததால் களைகட்டியது ஆழியாறு அணை| publisher=Dina Malar| date=7 November 2010| access-date=7 November 2010}}</ref> Near Aliyar dam are some visitor attractions including a park, garden, aquarium, play area and a mini Theme-Park maintained by Tamil Nadu Fisheries Corporation for visitors enjoyment. Temple of Consciousness is situated near Aliyar dam entrance at Arutperunjothi Nagar, where [[Vethathiri Maharishi]] resides. The scenery is beautiful, with mountains surrounding three quarters of the reservoir. Boating is also available.<ref name="Coimbatore"/> [[Monkey Falls]] is located at 6 km from the dam next to Arutperunjothi Nagar and Forest Department Checkpost.<ref name="aquatic"/> Overnight stay is possible in the forest rest house. A treetop house provides accommodation for the adventurous.<ref name="HydroPower">[http://www.tn.gov.in/spc/annualplan/chapter11-1.htm Infrastructure Development & Tourism, Govt. of Tamil Nadu]</ref> The Dam and Park and the overall surroundings of the dam are very poorly maintained as of 2017.

== See also ==
* [[List of dams and reservoirs in India]]
* [[Valparai]]

== References ==
{{Commons category|Aliyar Reservoir}}
{{reflist}}

{{Hydrography of Tamil Nadu}}
{{Power Plants of Tamil Nadu}}
{{Coimbatore district}}

[[Category:Reservoirs in Tamil Nadu]]
[[Category:Dams in Tamil Nadu]]
[[Category:Dams completed in 1969]]
[[Category:Geography of Coimbatore]]
[[Category:1969 establishments in Tamil Nadu]]

Aliyar Reservoir - Revision history

>BrownHairedGirl at 00:35, 4 April 2021