| 词条 | Draft:Athikadavu Avinashi Project | ||||||||
| 释义 |
{{Infobox The Athikadavu Avinashi Scheme envisages ground water recharge to the drought prone areas and ground water depleted areas in 71 Nos. of tanks and 538 nos. of percolation ponds respectively in 9 taluks of Erode, Tiruppur and Coimbatore districts.[1] Besides, the scheme shall also aim for recharging the tanks and ponds in Ground water critical block of Nambiyur and semi-critical block of Perundurai. The scheme has Gross command area (GCA) and Culturable command area (CCA) of about 9446.44 ha. In the proposed scheme the main canal off takes is to be constructed across Bhavani river near village Thondai at a latitude of 11°14’16.71” N and longitude of 76°46’59.89” E. The main offtake is to be located at 5 km upstream side of Pillur dam which is located at 70 km from Coimbatore district.[2] The main canal and two branch canals namely, Avinashi branch canal and Perundurai branch canal passes through Mettupalayam, Coimbatore North and Annur taluks of Coimbatore District, Sulur, Avinashi and Uthukuli Taluks of Tiruppur District, and Sathyamangalam, Gobichettipalayam and Perundurai taluks of Erode District respectively in the state of Tamil Nadu.[3] Aim(s) of the project
History of the project1834 - The idea of utilising the water of the Bhavani River to benefit the dry areas of Coimbatore District was envisaged by Sir Arthur Cotton 1905 - Two alternative schemes investigated - one to have a storage reservoir in the Upper reaches of Bhavani River called the Upper Bhavani Project to benefit Avinashi, Palladam, Dharapuram, Udumalpet and Coimbatore taluks and the other lower down, called the Lower Bhavani Project, to serve Gobichettipalayam, Erode, Bhavani and Dharapuram taluks of the then Coimbatore District. After examining the two proposals, it was finally decided to go in for the Lower Bhavani Project which had more dependable yield for new irrigation. Under this scheme, no benefits accrued to the people in Avinashi Taluk. 1957 - Two schemes were considered for giving irrigation facilities for the Avinashi Taluk by utilising the tail race waters of Pillur Reservoir . It was named as the Upper Bhavani Project. This could said as the stating point for the athikadavu avinashi project. 1968 - Considered that a scheme with restricted benefits only would be practical and utilisation under Avinashi scheme could be about 3000 Mcft. from the Kundah tail race waters, for which a preliminary report was sent to the Government. Two alternatives were considered – one as an all wet scheme and the other as a dry scheme. The scheme was however deferred by the Government in G.O.Ms.No.2124 PWD dt.26.11.1969. 1972 - Upper Bhavani project was rechristened (renamed) as Athikadavu – Avanashi Ground Water Recharge Project 1975 - Proposed to limit the benefits only to the areas which can be served by a gravity canal talking off from the river below Pillur Dam from a diversion weir, about 1 km (5 furlongs) downstream of the Pillur Dam. The total area proposed for irrigation under the canal was 8903 ha (22000 acres) dry, including 809 ha (2000 acres) of wet lands under the existing tanks. This proposal also could not be proceeded with. 1999 – 2000 - There was a demand for executing a scheme for diverting water from Bhavani River to fill in the existing tanks to ensure drinking water to several villages in the Avinashi Taluk by recharge. Since filling in minor irrigation tanks will only mean stabilization or expansion of irrigation and since the TWAD Board had indicated that they have already covered all the villages in the area under the drinking water scheme, the Cauvery Technical cell could not give its consent for such a drinking water scheme, as it may not be favoured in the Cauvery Water Disputes Tribunal treating it as extension of ayacut in the Bhavani Sub-basin. 2002 - Plan Formulation department prepared a Feasibility Report for the diversion of 2 TMC of water from the west flowing Pandiar river so as to augment the Athikadavu Avinashi drinking water scheme, by constructing a dam across Pandiyar river and excavating a tunnel of 27.2 km to Sigur river, a tributary of Moyar river. It was considered that it may not be possible to execute this scheme involving interstate issues and other practical difficulties including mining such a long costly tunnel. 2009 - During the submission of Budget for the year 2009-2010 in the Tamil Nadu Legislative Assembly, it was announced that an Expert committee is formed and headed by Thiru. A.Mohanakrishnan, Chairman, Cauvery Technical Cell to analyze the long pending demand of farmers in Coimbatore and Erode districts to implement Athikadavu – Avinashi Flood Flow Canal Scheme. Expert Committee presented its report to the Government on 31.10.2009. The Government has accepted the recommendations of the Expert Committee and requested the PWD to conduct a detailed investigation and send a report along with rough cost estimate to Government. Based on the above instruction, the project investigation on Athikadavu-Avinashi Flood flow Canal Scheme was taken up. The estimate was prepared for an amount of Rs.1862.00 Crore for the year 2011-12 and sent to Govt. of India for financial assistance under flood management programme. The Central Water Commission communicated its comment on the estimate stating that this proposal may be considered as an irrigation project since the scheme aims to fill up tanks and ponds. 2013-since the time delay, the cost of the project have extraordinarily shot up from 1862.00 crores to exorbitant amounts and became a question mark on the viability of the project in terms of cost-benefit ratio. Project locations and canal systemIn the old govt proposed scheme, following are the key features of the canal system:
Latest Efficient cost-effective ProjectPipeline SchemePipeline scheme below 950 Crores by FFAAST and Senior PWD Engineers Association [5]Salient Features of the Latest Modified Proposals (October 2015) in the Athikadavu Avanashi GW Recharge Scheme 1. Drawal of 2 TMC of water through 4.50m dia Tunnel - 4km long for 20 days as specified in Er.A.Mohanakrishnan Experts Committee Report. 2. Forming an open storage reservoir of 2.00 TMC capacity with 838 acres of water spread with an average depth of 10m at Kandiyur - Velliangadu belt 3.50KM long bund with RE Wall with FWL +420m (U/S RC Panels is made watertight by using concrete sealant/micro concrete/cement grouting) 3. Off-take line with 1x2000mm dia RC concrete pipes of NP class (non-pressure type) as the main line from Kandiyur Reservoir to Karegoundanpalayam, 45.31km long and also feeding some 6 tanks & 20 ponds in between with a drawal capacity of 200 cusecs for 120 days by gravity flow. 4. OT line 2 - branching to Avanashi with 1x800mm dia pipes for 25.90km the length and feeding 3 tanks & 94 ponds in between with a drawal capacity of 15 cusecs by gravity flow. 5. OT line 3 - branching to Perundurai with 1x1600mm dia concrete pipes with 125 cusecs drawal capacity for a length of 89.00km for feeding 62 tanks and 424 ponds for 120 days by gravity flow. 6. Separate Branching lines of 600 to 300mm dia concrete pipes to feed certain chain of Tanks in the Perundurai line by gravity flow. 7. Separate smaller OT lines of 300mm dia RC concrete pipes to feed smaller 538 ponds from major tanks or main lines by gravity flow. 8. All the pipelines are proposed to be taken alongside of the existing State Highways, Major district roads & also village roads to totally avoid land acquisition from farmers and also expedite the execution of the project. 9. Closed RC concrete pipes (non-pressure type NP ) are chosen to supply the required water to all the tanks and ponds including the tail ended ones without evaporation loss, seepage, theft of water by illegal pumping and 2 also preventing the front ones to draw more water denying the same to tail ends and also with cost-effectiveness. 10. Drawal of water to each and every tanks and ponds is regulated by the cross masonry works which are fitted with V notches for letting out exact quantity. Districts and Taluks benefited
References
1. ^{{Cite news|url=http://www.thehindu.com/news/cities/Coimbatore/farmers-hope-for-announcement-on-athikadavu-avanashi-scheme/article2953696.ece|title=Farmers hope for announcement on Athikadavu – Avanashi Scheme|last=Palaniappan|first=V. S.|date=2012-03-02|work=The Hindu|access-date=2017-09-14|language=en-IN|issn=0971-751X}} 2. ^{{Cite news|url=http://timesofindia.indiatimes.com/city/coimbatore/avinashi-athikadavu-project-gets-rs-250-crore-boost/articleshow/57679019.cms|title=Avinashi-Athikadavu project gets Rs 250 crore boost - Times of India|work=The Times of India|access-date=2017-09-14}} 3. ^{{Cite news|url=http://www.newindianexpress.com/states/tamil-nadu/2017/mar/17/where-is-the-blueprint-for-athikadavu-avinashi-1582327.html|title=Where is the blueprint for Athikadavu-Avinashi?|work=The New Indian Express|access-date=2017-09-14}} 4. ^{{Cite news|url=http://www.thehindu.com/todays-paper/tp-national/tp-tamilnadu/implement-avinashiathikadavu-water-project-ngo/article7620946.ece|title=Implement Avinashi-Athikadavu water project: NGO|date=2015-09-06|work=The Hindu|access-date=2017-09-14|others=Special Correspondent, Special Correspondent|language=en-IN|issn=0971-751X}} 5. ^{{cite web|url=http://tanseapwd.com/|title=:::Tamilnadu Senior Engineers Association - PWD:::|website=tanseapwd.com}} External linksFederation For Athikadavu Avinashi Groundwater Recharge Scheme Category:Irrigation in India |
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