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I. Major River Valley Projects & Dams in India
A. Narmada River Basin
- Narmada Valley Project
- Sardar Sarovar Project (SSP)
- River: Narmada River
- Location: Near Navgaon, Gujarat
- Beneficiary States: Gujarat, Madhya Pradesh, Maharashtra, Rajasthan
- Key Features:
- Height: 163 meters
- Power Capacity: 1,450 MW
- Major Beneficiary: Madhya Pradesh (65.18% of water, 57% of electricity)
- Controversy: Opposed by the Narmada Bachao Andolan (NBA), led by social activist Medha Patkar, specifically against the raising of the dam’s height.
- Other Major Dams on the Narmada:
- The project includes 30 major dams.
- Examples: Indira Sagar Dam (Khandwa, MP; submerged Harsud; 1,000 MW), Omkareshwar Dam (Khandwa, MP), Bargi Dam.
- Note: Ban Sagar Dam is built on the Son River, not the Narmada.
- Sardar Sarovar Project (SSP)
B. Satluj River Basin
- Bhakra Nangal Project
- River: Satluj River
- Location: Border of Himachal Pradesh and Punjab, near Nangal City.
- Key Feature: Bhakra Dam is the world’s tallest straight gravity dam.
- Beneficiary States: A joint project of Punjab, Haryana, and Rajasthan. Benefits also extend to Himachal Pradesh.
- Related Dam: Nangal Dam is also on the Sutlej River. A key purpose of the upstream dam is to check silt flow into Bhakra Dam.
C. Krishna River Basin
- Nagarjuna Sagar Project
- River: Krishna River
- Location: Border of Telangana and Andhra Pradesh, near Nalgonda village.
- Completion: 1967
- Structure: 1,550-meter-long masonry dam.
- Purpose: Multi-purpose project.
- Irrigation: Provides irrigation to districts of Nalgonda, Khammam (Telangana), and Krishna, Guntur, Prakasam (Andhra Pradesh).
- Other Dam on Krishna: Almatti Dam.
D. Mahanadi River Basin
- Hirakud Dam Project
- River: Mahanadi River
- Location: 15 km from Sambalpur, Odisha.
- Structure: Main dam is 4.8 km long; total length with dykes is 25.8 km.
- Purpose: Major irrigation project.
- Benefit: Can irrigate approximately 1 million hectares.
E. Chambal River Basin
- Chambal Valley Project
- River: Chambal River
- Type: Joint venture between Rajasthan and Madhya Pradesh.
- Major Dams (in sequence):
- Gandhi Sagar Dam: First dam, in Mandsaur district, Madhya Pradesh (built 1957-1960).
- Rana Pratap Sagar Dam: In Rawatbhata, Rajasthan (built 1953-1970).
- Jawahar Sagar Dam: In Rajasthan.
- Purpose: Hydroelectric power and irrigation.
F. Ganga River Basin & Tributaries
- Tehri Dam Project
- River: Bhagirathi River (a headstream of the Ganga). The Bhilangana River meets the Bhagirathi at the dam site.
- Location: Tehri district, Uttarakhand.
- Purpose: Flood control, hydroelectric power, irrigation.
- Status: Construction started in 1978.
- Damodar Valley Project
- River: Damodar River and its tributaries.
- Governance: Managed by the Damodar Valley Corporation (DVC), established in 1948.
- Historical Context: Known as the “Sorrow of Bengal” due to floods.
- Key Dams (on the Barakar River, a tributary): Tilaiya Dam (Koderma, Jharkhand), Maithon Dam, Konar Dam.
- Rihand Project
- River: Rihand River (a tributary of the Son River).
- Reservoir: Creates the Govind Ballabh Pant Sagar in Sonbhadra district, Uttar Pradesh (area rich in coal).
- Other Projects:
- Ramganga Project: Dam on the Ramganga River (Kalagarh Dam).
- Matatila Project: Dam on the Betwa River.
- Rani Laxmibai Dam (Rajghat Dam): On the Betwa River in Lalitpur.
G. Cauvery (Kaveri) River Basin
- Historical Power Project
- Shivasamudram Hydropower Project:
- Location: Cauvery River, Karnataka.
- Significance: Second-oldest hydroelectric plant in India (commissioned 1902). Primarily for power generation.
- Other Dam: Mettur Dam (Tamil Nadu).
- Shivasamudram Hydropower Project:
- Cauvery Water Dispute
- Parties Involved: Tamil Nadu, Karnataka, Kerala, Puducherry.
- Tribunal Award (2013 – CWDT):
- Tamil Nadu: 419 TMC
- Karnataka: 270 TMC
- Kerala: 30 TMC
- Puducherry: 7 TMC
H. Other Significant Projects by River
- Tapi River: Ukai Dam, Kakrapar Dam (Gujarat).
- Godavari River: Jayakwadi Project (Maharashtra), Pochampad Project (Telangana/AP). Note: Babli Project on Godavari in Maharashtra is controversial, opposed by Andhra Pradesh.
- Beas River: Pong Dam (Himachal Pradesh); reservoir is Maharana Pratap Sagar (a bird sanctuary).
- Chenab River: Dulhasti Power Station (Jammu & Kashmir), Baglihar Hydroelectric Project (Jammu & Kashmir – a subject of dispute with Pakistan).
- Periyar River: Idukki Dam and Cheruthoni Dam (Kerala).
- Tawa River: Tawa Project (Hoshangabad, Madhya Pradesh).
- Tungabhadra River: Tungabhadra Project (joint venture of Andhra Pradesh and Karnataka).
II. Interstate & International Water Agreements/Disputes
A. Interstate Disputes & Tribunals
- Narmada Water Disputes Tribunal: Involves Gujarat, Madhya Pradesh, Maharashtra, Rajasthan.
- Cauvery Water Disputes Tribunal: Involves Tamil Nadu, Karnataka, Kerala, Puducherry.
- Mahadayi Water Disputes Tribunal: Involves Goa, Karnataka, Maharashtra.
- Godavari Water Disputes Tribunal: Involves Andhra Pradesh, Madhya Pradesh, Chhattisgarh, Odisha, Karnataka.
- Mahanadi Water Disputes Tribunal: Involves Odisha and Chhattisgarh.
B. International Agreements
- Indus Waters Treaty (1960)
- Parties: India and Pakistan.
- Governs: Sharing of waters of the Indus River system.
- Points of Contention: Tulbul Project (on Jhelum), Baglihar Dam (on Chenab).
- Mahakali Treaty (1996)
- Parties: India and Nepal.
- River: Mahakali River (known as Sharda in India).
- Purpose: Integrated development, including Sharda Barrage, Tanakpur Barrage, and a proposed multipurpose project.
- India-Bhutan Cooperation
- Chukha Dam: Built on Wang Chu/Raidak river in Bhutan with Indian cooperation.
- Mangdechhu Hydropower Plant: Inaugurated in 2019 in Bhutan by Indian PM Narendra Modi.
- Bhutan’s Goal: To generate 10,000 MW of hydropower by 2020.
III. Special Category Projects
A. Multi-State Drinking Water Project
- Telugu Ganga Project: A joint venture of Tamil Nadu, Andhra Pradesh, Karnataka, and Maharashtra to supply drinking water to Chennai from the Krishna River.
B. Proposed Project
- Kalpasar Project: A proposed tidal energy and freshwater reservoir project in Gujarat, involving a dam across the Gulf of Khambhat.
- Kishau Dam Project: Proposed on the Tons River (tributary of Yamuna); benefits Uttarakhand, Himachal Pradesh, Haryana, Delhi, Rajasthan, Uttar Pradesh.
IV. Historical Context & Significant Firsts
- Jawaharlal Nehru called multi-purpose projects the “temples of modern India”.
- Oldest Hydropower Plant in India: Sidrapong Hydropower Station (Darjeeling, West Bengal), commissioned in 1897.
- Second-Oldest Hydropower Plant: Shivasamudram Hydropower Station (Karnataka), commissioned in 1902.
V. Quick Reference: Project-River-State Pairings
| Project/Dam Name | River | State(s) |
|---|---|---|
| Sardar Sarovar | Narmada | Gujarat |
| Bhakra Nangal | Satluj | HP, Punjab |
| Nagarjuna Sagar | Krishna | Telangana, AP |
| Hirakud | Mahanadi | Odisha |
| Tehri | Bhagirathi | Uttarakhand |
| Rihand | Rihand (Son tributary) | Uttar Pradesh |
| Gandhi Sagar | Chambal | Madhya Pradesh |
| Rana Pratap Sagar | Chambal | Rajasthan |
| Ukai | Tapi | Gujarat |
| Mettur | Cauvery | Tamil Nadu |
| Idukki | Periyar | Kerala |
| Pong | Beas | Himachal Pradesh |
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