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Polavaram Project
Context:
The Central Government has released around ₹14,419 crore for the construction of the Polavaram dam after it was designated as a ‘national project’ as per Section 90 of the A.P. Reorganisation Act of 2014.
About Project
- It is a multi-purpose irrigation project on the Godavari River in Andhra Pradesh, India.
- Location: Ramayyapeta village of Polavaram Mandal (upstream of Kovvur-Rajahmundry road-cum-rail bridge and Sir Arthur Cotton Barrage).
- Purpose: Multi-purpose project for irrigation, hydropower, and water supply.
Irrigation Potential:
- Gross: 4,36,825 ha (increased intensity to 10.80 lakh acres annually).
- Canals: Left Main Canal (181.999 km) – 4 lakh acres, Right Main Canal (178.81 km) – 3.2 lakh acres.
- Hydropower: 960 MW (12 x 80 MW).
Water Supply:
- Drinking water for 28.5 lakh people in 611 villages.
- 23.44 TMC for industries and drinking water (Visakhapatnam).
- Sharing with other states: Odisha (5 TMC), Chhattisgarh (1.5 TMC).
- Dam: Earth cum Rockfill dam/concrete dam (three gaps), 2454 metres in length.
Other benefits:
- Stabilisation of Godavari and Krishna deltas (10.13 lakh acres + 13 lakh acres)
- Interlinking of Godavari and Krishna rivers (diversion of 80 TMC to Krishna basin)
Godavari River
- The river rises near Nasik in Maharashtra at an elevation of about 1067 m and flows for a length of about 1465 km before outfalling in to the Bay of Bengal.
- The principal tributaries of the river are the Pravara, the Purna, the Manjra, the Penganga, the Wardha,the Wainganga the Pranhita (combined flow of Wainganga, Penganga, Wardha), the Indravati, the Maner and the Sabri.
