Basic Facts
- Total number of dams in Kerala for irrigation purpose - 18
- The largest reservoir in Kerala - Malampuzha Dam (Palakkad)
- The first dam in Kerala - Mullaperiyar Dam (Idukki)
- The largest dam in Kerala - Malampuzha Dam
- The first arch dam in India - Idukki Dam
- The largest irrigation project in Kerala - Kallada (Kollam)
- The second largest irrigation project in Kerala - Thenmala (Kollam)
- The river which has largest number of irrigation projects in Kerala - Bharatapuzha
- The district which has largest number of irrigation project - Palakkad
- The largest earthen dam in India - Banasura Sagar Dam (Wayanad)
- First concrete dam in Kerala - Mattupetti Dam (Idukki)
- The smallest hydro electric project in Kerala - Mattupetti
- The first hydro-electric project in Kerala - Pallivasal Dam
- The largest hydroelectric project in Kerala - Idukki Dam
1. Banasura Sagar Dam
- The largest earth dam in India
- Second largest earth dam in Asia
- It is constructed across the river Kabani
- The district in which the dam located - Wayand
- Constructed in 1979
2. Idukki Dam
- First arch dam in Asia
- Started construction in 30 April 1969
- Inaugurated in 1973
- It consists of three dams at Idukki, Cheruthoni and Kulamavu
- The tribal leader who suggested the spot for Idukki Dam - Kolumban Mooppan
- The Prime Minister who commissioned the commercial operation of Idukki Dam - Indira Gandhi (1976)
- Idukki dam is located on the Periyar river between the Kuravan Mala and Kurathi Mala
- The under ground power station of Idukki dam - Moolamattam Power Station
- Longest under ground hydro electric power station in India - Moolammattom
- The initial operating capacity of Idukki Hydro - electric power project - 750 MW
3. Malampuzha Dam
- The largest reservoir in Kerala
- It is located in Palakkad District
- Dam was built across the Malampuzha River (Tributary of Bharatapuzha)
- The construction of Malampuzha dam bagan in - March 1949
- The dam was inaugurate in the year - 1955
- Constructed in the year 1953
- First concrete dam in Kerala
- Smallest hydro electric power station in Kerala
5 Mullaperiyar Dam
- First dam in Kerala
- The district in which Mullaperiyar Dam located - Idukki
- The construction work of the dam started in the year - 1887
- It was commissioned in the year - 1895
- Mullaperiyar lease agreement was signed on - 29 October 1886
- The dam was made with - Surki Mixture
- The Mullaperiyar dam built across the dam - Periyar
- The taluk in which Mullaperiyar dam located - Peerumedu (Panchayat - Kumily)
- The lease agreement was signed by - V Ram Iyengar (Diwan of Travancore) and J C Hannington (State Secretary of Madras State)
- The agreement was renewed in 1970 during the ministry of C Achutha Menon
- The Mullaperiyar dam was inagurated during the reign of Sri Moolam Thirunal Rama Varma
- Mullaperiyar dam was inagurated by Lord Welock (Governor of Madras Presidency)
- The chief architect of Mullaperiyar Dam - John Pennyeuick
- The states that were in dispute for Mullaperiyar dam - Kerala and Tamil Nadu
- The Periyar National Park in Thekkady is located around the dams reservoir.
6.Peechi Dam
- Inaugurated in 1957
- Dam is built across the river Manali in Thrissur District
- Architect of Peechi Dam - E. Ikkanda Warrier
- Peechi - Vazhani wild life sanctuary established in 1958
7.Thenmala, Dam
- Second largest irrigation project in Kerala
- Dam was built across the river Kallada
- Thenmala dam was constructed in the year 1961
- Thenmala dam shares the border with Senthurini wild life sanctuary
List of dams in Kerala :
| Sl.No | River | Dam | District |
| 1 | Bharathapuzha River | Malampuzha Dam | Palakkad |
| 2 | Bharathapuzha River | Mangalam Dam | Palakkad |
| 3 | Bharathapuzha River | Meenkara Dam | Palakkad |
| 4 | Bharathapuzha River | Chulliar Dam | Palakkad |
| 5 | Bharathapuzha River | Pothundi Dam | Palakkad |
| 6 | Bharathapuzha River | Walayar Dam | Palakkad |
| 7 | Bharathapuzha River | Kanjirapuzha Dam | Palakkad |
| 8 | Chalakudy River | Parambikulam | Palakkad |
| 9 | Chalakudy River | Thunakkadavu Dam | Palakkad |
| 10 | Chalakudy River | Peruvaaripallam Dam | Palakkad |
| 11 | Chalakudy River | Sholayar Dam | Thrissur |
| 12 | Chalakudy River | Peringalkuthu Dam | Thrissur |
| 13 | Chelakkara River | Asurankund Dam | Thrissur |
| 14 | Erattayar Lake | Erattayar Dam | Idukki |
| 15 | Kabini River | Banasura Sagar Dam | Wayanad |
| 16 | Kakkattar River | Maniyar Dam | Pathanamthitta |
| 17 | Kallada River | Thenmala Dam | Kollam |
| 18 | Karamana River | Aruvikkara Dam | Thiruvananthapuram |
| 19 | Karamana River | Peppara Dam | Thiruvananthapuram |
| 20 | Karapuzha River | Karapuzha Dam | Wayanad |
| 21 | Karuvanoor River | Peechi Dam | Thrissur |
| 22 | Keecheri River | Vazhani Dam | Thrissur |
| 23 | Kurumali River | Chimmony Dam | Thrissur |
| 24 | Kuttiyadi River | Kuttiyadi Dam | Kozhikode |
| 25 | Kuttiyadi River | Kakkayam Dam | Kozhikode |
| 26 | Muvattupuzha River | Malankara Dam | Idukki |
| 27 | Neyyar River | Neyyar Dam | Thiruvananthapuram |
| 28 | Pamba River | Pamba Dam | Pathanamthitta |
| 29 | Pamba River | Kakki Dam | Pathanamthitta |
| 30 | Periyar River | Idukki Dam | Idukki |
| 31 | Periyar River | Ponmudi Dam | Idukki |
| 32 | Periyar River | Anayirnkal Dam | Idukki |
| 33 | Periyar River | Kundala Dam | Idukki |
| 34 | Periyar River | Mattupetti Dam | Idukki |
| 35 | Periyar River | Sengulam Dam | Idukki |
| 36 | Periyar River | Neriyamangalam Dam | Ernakulam |
| 37 | Periyar River | Bhoothathankettu Dam | Ernakulam |
| 38 | Periyar River | Mullaperiyar Dam | Idukki |
| 39 | Periyar River | Cheruthoni Dam | Idukki |
| 40 | Periyar River | Kulamavu Dam | Idukki |
| 41 | Siruvani River | Siruvani Dam | Palakkad |
| 42 | Valapattanam River | Pazhssi Dam | Kannur |