Historic Operation: 18th Crest Gate at Tungabhadra Dam Successfully Cut and Removed
Tungabhadra Dam's 18th Crest Gate Portion Removed in First-Ever Op

In a landmark engineering operation, a significant portion of the 18th crest gate at the historic Tungabhadra Dam was successfully cut and removed. This procedure, carried out on December 7, 2025, marked a first in the dam's long history, as it involved the unprecedented entry of a crane onto the dam structure itself.

A First-of-its-Kind Operation

The complex task began with skilled workers using a gas cutter to carefully sever a specific section of the 18th crest gate from the main structure. Once the cutting was complete, the real challenge commenced. For the very first time since the dam's construction, a heavy-duty crane was maneuvered onto the dam. This crane was then pressed into critical service to lift the heavy, severed gate portion and safely remove it from the site.

Significance and Technical Details

The use of a crane directly on the Tungabhadra Dam is the most notable aspect of this operation, highlighting the unique logistical challenges faced by the engineering team. Crest gates are vital components of dam infrastructure, controlling the flow and level of reservoir water. The precise removal of a portion of such a gate indicates a major maintenance, repair, or upgrade initiative. The successful execution demonstrates a high level of technical planning and expertise to ensure the structural integrity of the dam was not compromised during the process.

Implications for Dam Management

This operation at the Tungabhadra Dam, a crucial source of irrigation and power for the region, sets a new precedent for future maintenance work. It proves that complex mechanical interventions can be performed on aging infrastructure with careful planning. The successful removal paves the way for the next steps, which could involve:

  • Installation of a new gate section.
  • Comprehensive repairs to the existing gate mechanism.
  • Detailed inspection and reinforcement of the gate structure.

The operation underscores the ongoing efforts to maintain and modernize India's critical water infrastructure, ensuring its reliability and safety for the communities that depend on it.