Setback for Subansiri Lower Hydroelectric Project Ahead of Commissioning

Structural Issues Arise at Subansiri Lower Hydroelectric Project

Jorhat, June 11: Just days prior to its expected commissioning, the 2,000 MW Subansiri Lower Hydroelectric Project (SLHEP) at Gerukamukh has faced a significant structural challenge. A portion of the guard wall beneath Spillway Gate Block No. 6 was swept away by the strong currents of the Subansiri River, raising new safety and stability concerns for this long-delayed hydropower project.

Initial reports indicate that the river's powerful flow has eroded essential structural elements located under the spillway gate, leading to the collapse of part of the protective guard wall.

This breach has halted ongoing construction and final commissioning efforts, casting doubt on the readiness of India's largest hydroelectric project currently under development.

While the National Hydroelectric Power Corporation (NHPC) has not yet issued a detailed statement, emergency response and technical assessment teams have been dispatched to the site.

Engineering specialists are now evaluating the extent of the damage and its potential impact on the dam's structural integrity.

This recent incident adds to a series of challenges that have plagued the SLHEP since its inception, including environmental concerns, the seismic sensitivity of the area, displacement issues, and ongoing protests from local communities and civil society organizations.

Experts are urging an immediate safety review of the entire project structure.

Given that the SLHEP is viewed as a crucial component in fulfilling Northeast India's energy needs, the NHPC must act promptly to restore confidence in the project's safety and ensure that commissioning occurs only after all vulnerabilities have been addressed.