Adavinainar Dam

Adavinainar Dam is an irrigation dam and reservoir built across the Hanuman Nathi River at Mekkarai near Sengottai in Tenkasi District, Tamil Nadu, at the foothills of the Western Ghats. Completed in 2002, it stores water for irrigation and drinking purposes in the region. Surrounded by forested hills and agricultural land, the dam features a small park and viewpoint, offering scenic views of the reservoir and ghats, and is visited for sightseeing, photography and picnics.

Visitors can expect a scenic reservoir set against the Western Ghats with forested hills, calm backwaters and agricultural surroundings. The site includes the dam structure, reservoir viewpoint and a small garden/park area for leisure. Visitors can walk along designated viewing areas, enjoy photography of the hills and water, and experience a quiet natural environment. There is no regular boating; the visit is primarily for sightseeing, nature observation and picnics.

Constructed across the Hanuman Nathi River, a tributary of the Tamirabarani river system, the dam was built to provide irrigation and water supply to surrounding agricultural lands in the Tenkasi region. Construction was taken up in the 1990s and the dam was completed and commissioned in 2002, creating a reservoir with storage capacity to support irrigation in Sengottai and Tenkasi taluks.

The dam and reservoir are named after Lord Adavinainar, a local deity whose temple, Adavinainar Temple, is located near the reservoir at Mekkarai. The temple is of local religious importance and is visited by devotees, linking the dam site with regional cultural traditions.