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Thottappally Spillway Alappuzha, The Guard Of Kuttanad Vs Thaneermukkom Bund | തോട്ടപ്പള്ളി സ്പിൽവേ

music credits - Saji Markose- 9495558553 for promotions on HRIDAYARAGAM - 8078189318 (whatsapp only) Thottappally Spillway Alappuzha, The Guard Of Kuttanad | കുട്ടനാടിന്റെ കാവലൻ തോട്ടപ്പള്ളി സ്പിൽവേ Thottappally Spillway is Kuttanad's drain-way out to the Arabian Sea.[1] The Thottappally Spillway splits the Thottappally lake with the fresh water part to the east and saline Thottappally river mouth to the west merging with the Arabian Sea. Thottappally spillway is constructed to spill excess water coming over the Upper Kuttanad and Lower Kuttanad regions through Manimala River, Achancovil River and Pamba River. It is designed such that it could spill off 19,500 cubic meters of water per second, but after its construction it was found that it is able to spill 600 cubic meters of water per second. Reasons for this reduced flow rate are, strong sea breezes during rainy seasons resulting in a rise in sea level relative to the water level of Kuttanad, formation of sand bars on the western area of the spillway and the width of the leading canal is too narrow to carry this much water to the spillway. The Thanneermukkom Bund (Thannermukkom Salt Water Barrier) was constructed as a part of the Kuttanad Development Scheme to prevent tidal action and intrusion of salt water into the Kuttanad low-lands across Vembanad Lake between Thannermukkom on west and Vechur on east. Thanneermukkom Bund was constructed in 1974 and is functional since 1976. It is the largest mud regulator in India. This barrier essentially divides the lake into two parts - one with brackish water perennially and the other half with fresh water fed by the rivers draining into the lake.