Hyderabad: After years of delay, the long-stalled SLBC tunnel project is finally set to spring back to life by the end of July. Telangana Irrigation Minister Uttam Kumar Reddy announced on Wednesday that excavation will restart using cutting-edge technologies and expert assistance from the Ministry of Defence.
To ensure a safe and scientifically sound resumption, an advanced geophysical survey will first be carried out over the 44-kilometre stretch. This will involve electro-magnetic and LiDAR scanning via helicopter, using state-of-the-art equipment being imported from Denmark. The survey aims to map subsurface conditions with precision before drilling begins.
Uttam Kumar Reddy, who addressed reporters at Telangana Bhavan in Delhi after a detailed meeting with Defence Ministry officials, said the Centre has agreed to provide technical support to avoid past mishaps. A special eight-member expert panel had reviewed the tunnel accident that halted the project and recommended this cautious, high-tech approach.
In a significant development, Colonel Prakshit Mehra, who previously led tunnelling efforts at Rohtang and Zojila, will join Telangana on deputation as Special Secretary for Water Resources. He will oversee not just the SLBC tunnel but all other similar projects. Joining him in an advisory role is former Director General of the Border Roads Organisation and chairman of the International Road Congress, General Harpal Singh, who will offer guidance to the state government free of cost.
The minister confirmed that the pending 9-kilometre stretch, along with the already excavated 35 kilometres, will undergo aerial survey beginning July 12. Low-flying helicopters from the Indian Air Force and Pawan Hans are being requisitioned for the task. The survey cost is expected to remain under ₹2 crore, and it will be coordinated by Professor Tiwari, Director of the North East Institute of Science and Technology, who brings vast expertise in geosciences.
Unlike previous methods, this phase will employ a specialised alternative to traditional tunnel boring machines, allowing for safer and more efficient excavation. The target is to complete the full tunnel in two years and bring irrigation to 3.4 lakh acres in Nalgonda district. Importantly, Reddy assured that the entire operation will stay within the originally sanctioned budget of ₹4,500 crore.
