About Project - Polavaram Irrigation Project
Polavaram Irrigation Project is a multi-purpose project on river Godavari near
Ramayyapeta village of Polavaram mandal about 42 km upstream of Sir Arthur Cotton
Barrage, where river emerges out of last range of the Eastern Ghats and enters the plains in
East and West Godavari Districts of Andhra Pradesh. The project heralds a wide range of
developmental activities across the region.
The project consists of Earth-cum-Rock fill dam on main river course, gated concrete
spillway, left and right connectivities for carrying water from reservoir to
Left Main Canal and Right Main Canal.
Salient Features
Components
- Earth cum Rock Fill Dam in the main river course and adjacent gap for a length of 2454 m
(564 m + 1750 m + 140 m) with a maximum height of 50 m.
- 1118.40 m long Spillway with 48 Nos. Radial Gates of size 16 m x 20 m with crest level +25.72 m
for discharging probable maximum flood of 1,41,435 cumec.
- Left Main Canal for a length of 181.999 km to provide irrigation to 1.619 lakh ha. (4.00 lakh acre) in East Godavari and Visakhapatnam
Districts and supply of 23.44 TMC of water to in and around Visakhapatnam city including Vizag Steel Plant and drinking water facilities.
- Right Main Canal for a length of 178.810 km to provide irrigation to 1.29 lakh ha. (3.20 lakh acre)
in West Godavari and Krishna Districts. Diversion of 80 TMC of Godavari River to Krishna River
- Left and Right Connectivities.
- Surface Power House with installed capacity of 960 MW (12 x 80 MW) on Left flank with water conductor system.
Tee Diagram - Head Works
Tee Diagram - Right Main Canal
Tee Diagram - Left Main Canal