Bhavanisagar dam level rises 2.21 feet in two days as inflow nears 3,500 cusecs
Synopsis
Key Takeaways
The water level at Bhavanisagar dam in Erode district, Tamil Nadu, rose by 2.21 feet in just two days after inflow climbed to nearly 3,500 cusecs, bringing measured relief to farmers who had watched storage decline sharply over several months. The reservoir's level stood at 54.38 feet at 6 pm on 7 October 2026 and recovered to 56.59 feet by 6 pm on 9 October 2026, according to dam authorities.
Inflow on the rise
Inflow into the reservoir rose from 2,436 cusecs at 6 pm on 8 October to 3,488 cusecs at the same time the following day. The uptick follows recent rainfall in the catchment areas that feed the dam — the Bhavani river, which descends from the Nilgiris through Mettupalayam, and the Moyar river, flowing from the Gudalur hills through Thengumarahada. The combined surge has helped reverse a prolonged declining trend.
How low the dam had fallen
The reservoir, which has a full level of 105 feet, had earlier dropped to approximately 50 feet — a level that exposed stretches of the reservoir bed. Authorities used the opportunity to permit silt removal from the exposed sections, and farmers carried out the desilting work. The low storage had already constrained irrigation supply to agricultural users across the district.
Irrigation releases suspended to conserve water
In a bid to arrest further depletion, authorities suspended releases from the dam for irrigation. With outflow halted and inflow from catchment rainfall now improving, the reservoir has begun accumulating water steadily. The dual effect — no discharge, rising inflow — is credited with the 2.21-feet gain over two days. Officials have not indicated when irrigation releases will resume, making continued rainfall in the catchment critical to rebuilding storage toward the district's agricultural needs.
What farmers are watching
The improvement has lifted sentiment among farming communities in Erode, though uncertainty persists. The dam remains far below its full level of 105 feet, and any weakening of catchment rainfall could slow or reverse the recovery. Farmers dependent on the reservoir for irrigation — who had grown increasingly anxious as levels hovered near 50 feet — are closely tracking daily inflow readings. Notably, this recovery comes as October marks the tail end of the northeast monsoon window for the region, making the coming weeks decisive for whether storage can be meaningfully rebuilt before the next dry season.