Bhavanisagar Dam, Dam in Erode district, India

Bhavanisagar Dam, also known as Lower Bhavani Dam, is an earthen dam on the Bhavani River in Erode district, Tamil Nadu, India. The structure stretches about 5.6 miles (9 km) and stands around 130 feet (40 m) high, with a concrete face marked by arched openings, small vents, and spillway gates that release water in wide jets.

The Lower Bhavani Project was the first major irrigation scheme launched in India after independence, starting in 1948 and completed in 1955. The dam was opened for use in 1956 and has since supported farming and power generation in the region.

The dam and its reservoir are central to the identity of the surrounding area, and the local town is named after the dam itself. The Lower Bhavani Project Canal carries water from here to fields across the district, and the rhythm of farming life follows the release of water through the gates.

The dam is a large site, so plan to view it from the main access points rather than trying to walk its full length. The area is open to visitors, but access to certain sections may be limited, so it is best to check locally before setting out.

When the water level drops in summer, the remains of an old fort called Danayakkan Fort emerge from the reservoir bed. The fort was built in the 13th century and still stands firm after centuries under water.