Uppanar River
| Uppanar River | |
|---|---|
The Uppanar river near Manganallur Village, Mayiladuthurai district, Tamil Nadu, flowing at the brim in June 2025. | |
| Native name | உப்பனாறு |
| Location | |
| Country | India |
| State | Tamil Nadu |
| Region | South India |
| Origin | Various |
| Physical characteristics | |
| Mouth | Bay of Bengal |
• location | Tharangambadi & Cuddalore |
• coordinates | 11°01′07″N 79°51′20″E / 11.018663°N 79.855439°E |
• elevation | 17.00m |
| Length | 70 kilometres (43.5 mi) |
The Uppanar river, is a significant distributary of the Cauvery River in flowing through the coastal Sirkazhi and Tharangambadi taluks of Mayiladuthurai district, in the southern state of Tamil Nadu, India.
The Uppanar distributary system includes several engineered branches, often designated as A, B, C, and D in government and hydrological records. The Uppanar Rivers A, C, and D flow through the Mayiladuthurai district, whereas Uppanar River B flows through the Cuddalore district.
It forms part of the Cauvery delta system and supports irrigation, agriculture, and traditional fisheries. Several branches of the river exist, which are largely man-made canals used for irrigation in the delta. The river ultimately drains into the Bay of Bengal.