Kuttiyadi saddle dam

Kuttiyadi Saddle Dam (Malayalam:കുറ്റ്യാടി തടയണ) is a concrete gravity dam built across Karamanathodu river which is a tributary of Kabani river in Padinjarathara village of Wayanad district in Kerala, India. It is one of the six dams created as part of Kuttiyadi Augmentation scheme which augments the Banasurasagar reservoir. The dam was built and is maintained by Kerala State Electricity Board.

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 m high b) Near Kottagiri ( Earth fill dam) 11.0 m high c) Kottagiri ( Earth fill dam) 14.5 m high d) Kuttiyadi ( Concrete dam) 16.5 m high e) Nayamoola ( Earth fill dam) 3.5 m high f)   Manjoora ( Earth fill dam) 4.0 m 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 km2. The catchment area of Banasurasagar Dam is 61.44 km2.

Specifications

 * Location	Latitude:11⁰35’56”N
 * Longitude:75⁰55’09”E
 * Panchayath	Padinjarathara
 * Village	Padinjarathara
 * District	Wayanad
 * River Basin	Kabani
 * River	Karamanthodu
 * Release from Dam to river	Kakkayam reservoir
 * Taluk through which release flows	Koyilandy
 * Spillway	Not provided
 * Year of completion	2004
 * Name of Project	Kuttiady Augmentation Scheme
 * Type of Project	Multi purpose


 * Dam Features
 * Type of Dam : Concrete gravity
 * Classification	MH ( Medium Height)
 * Maximum Water Level (MWL)	EL 775.60 m
 * Full Reservoir Level ( FRL)	EL 775.60 m
 * Storage at FRL	209.25 Mm3
 * Height from deepest foundation	16.50 m
 * Length	121.0 m
 * Crest Level	Nil
 * River / Irrigation Outlet	1No. circular, 2.5m dia
 * Officers in charge & phone No.	Executive Engineer, Dam Safety Division No. V, Thariode
 * Assistant Executive Engineer, Dam Safety Sub Division
 * Installed capacity of the Project	231.75 MW
 * Project Identification Code ( PIC) : KL29MH0048
 * Project Identification Code ( PIC) : KL29MH0048

Reservoir


The Gross Storage of Kuttiyadi Augmentation (Banasura sagar) Reservoir is 209 Mm3 and live storage 185 Mm3. The water stored in the reservoir is diverted to the reservoir of Kuttiyadi Hydro Electric Project through an interconnecting tunnel. The sill level of diversion tunnel at inlet is 750.83 m. The size and shape of tunnel is varying. It is varying from 2.35 m dia. circular lined tunnel for a length of 890m &2.85 m D-shaped unlined tunnel for a length of 3873 m. Maximum diversion is11.6 m3/s. The diverted water is used for power generation from Kuttiyadi Power Station. FRL of the reservoir is 775.60 m. Top level of dam is 778.50 m. There are four radial gates, each of size 10.97 m x 9.20 m. Crest level of spillway is 767.00 m. Spillway capacity is 1664 m3/s. One lower level outlet is provided in the spillway structure at750.75 m of size 1.10 m X 1.75 m to release irrigation requirement.