Kosani Saddle Dam

Kosani Saddle dam is an earthen dam constructed on Karamanthodu in Thariyode panchayath of Wayanad district in Kerala, India. It is a saddle dam of Banasura sagar reservoir built as a part of Kuttiayadi Augmentation Scheme.^[1] The dam was built and is maintained by Kerala State Electricity Board.^[2]

The Kuttiyadi Augmentation Scheme comprises a main dam known as Banasurasagar Dam, an earth fill dam and a concrete gravity spillway dam and six saddle dams namely, a) Kosani ( Earth fill dam) 13.8 metres (45 ft) high b) Near Kottagiri ( Earth fill dam) 11.0 metres (36.1 ft) high c) Kottagiri ( Earth fill dam)14.5 metres (48 ft) high d) Kuttiyadi ( Concrete dam)16.5 metres (54 ft) high e) Nayamoola ( Earth fill dam)3.5 metres (11 ft) high f)   Manjoora ( Earth fill dam)4.0 metres (13.1 ft) high. All the dams, except Kuttiady saddle, are earth fill dams. The Kuttiyadi saddle dam is a concrete dam. The spillway is located adjacent to the main dam at the right bank of the original river course. The water spread area at FRL / MWL is 12.77 km^2. The catchment area of Banasurasagar Dam is 61.44 km^2..