| Adavinainar Dam | |
| Location Map: | Tamil Nadu#India |
| Location Map Caption: | Location of the Adavinainar Dam in Tamil Nadu |
| Coordinates: | 9.0667°N 77.2378°W |
| Country: | India |
| Location: | Mekkarai vadakarai Village, Tenkasi district, Tamil Nadu |
| Purpose: | 1992 flood in west gates before built the damIrrigation |
| Status: | Completed |
| Construction Began: | 1996 |
| Opening: | 2002 |
| Owner: | Government of Tamil Nadu |
| Dam Height: | 51.50NaN0 |
| Dam Length: | 6700NaN0 |
The Adavinainar Dam is located at the foothills of Western Ghats and border of Kerala, built across the Hanumanadhi River near Mekkarai, Vadakarai in the Tenkasi district of Tamil Nadu, Southern India. It provides water for irrigation to the region of Sengottai Taluk.
The dam construction was started in 1996. It was completed and opened in 2002.
East flowing rivers between Pennar and Kanyakumari.[2]
This Dam is maintained by Water Resources Department which in turn is managed by the Tamil Nadu Public Works Department.
This dam has a medium size park near its downstream. Over 2 km along the side of the dam is a fall. Due to an order by the district collector people are prohibited from this area and have therefore no entry to the dam.
By Road: The dam is situated at 15 km from Kadayanallur, 85 km from Tirunelveli, 14 km from Sengottai, 7 km from Vadakarai
By Train: The nearest railway station is sengottai railway station. Sengottai station is well connected with Kollam and Chennai.
By Air: The nearest airport is Thiruvananthapuram International airport(TRV) which is 117 km away from the Dam. International Air connectivity is available from Thiruvananthapuram