
Geographical disadvantage, technical glitches haunt SLBC tunnel works
Deccan ChronicleNalgonda: After nearly two decades of delays, the 43.9-km tunnel for the Srisailam left bank canal project remains incomplete amid technical glitches, escalating costs and bureaucratic inertia. The tunnel, which traverses sensitive areas, including a tiger reserve, a wildlife sanctuary, and protected forests, was started in 2005 by JP Associates using ‘double shield’ tunnel boring machines. A SLBC engineer reported that 20.5 km of the tunnel had been excavated from one end and 14 km from the opposite side, leaving a challenging 9.5-km section plagued by significant groundwater seepage. In August 2024, minister Komatireddy Venkata Reddy, while on a tour of the United States, met Robbins Tunnel Boring Machine Company’s CEO Lok Home in Ohio and secured an agreement for supply of critical TBM bearings to resume drilling operations.
History of this topic

GSI scientists examine geological conditions in SLBC tunnel to speed up debris removal
The Hindu
Kerala Police deploy cadaver dogs to aid Telangana tunnel collapse rescue efforts
Hindustan Times
Telangana SLBC tunnel collapse highlights: Debris clearance picks up pace as metal pieces are loaded onto loco
The Hindu
Debris removal from SLBC tunnel stretches on; agonising wait for kin of 8 trapped persons
The Hindu
Telangana SLBC tunnel | Rescue works to gain pace as conveyor belt is restored on day 11
The Hindu
Revanth Reddy lied on SLBC tunnel not being excavated during BRS rule, says KTR
The Hindu
Soft Rock Problems Force Rethink on SLBC Tunnel
Deccan Chronicle
Telangana tunnel collapse: Rescuers cut boring machine to reach trapped workers | Top updates
Hindustan Times
BJP demands judicial probe into SLBC works
Deccan Chronicle
SLBC tunnel rescue operation reaches final stages as SCR, SCCL step up debris removal
The Hindu
Telangana tunnel rescue day 6: Rescue teams find debris completely plugged last 50 metres of SLBC tunnel
The Hindu
Experts fear instability of SLBC tunnel
Deccan Chronicle
Mobile phone of an officer led to location of men trapped inside SLBC tunnel
The Hindu
SLBC tunnel collapse: Rescue operations for trapped workers underway
Deccan Chronicle
SLBC tunnel collapse exposes risks, delays in critical irrigation project
New Indian Express
SLBC tunnel survivors recall miraculous escape while others remain trapped
New Indian Express
Rescue teams race to save trapped workers at SLBC tunnel
Deccan Chronicle
SLBC Tunnel Collapse: 8 Trapped, NDRF Boosts Rescue Efforts
Deccan Chronicle
SLBC Tunnel: Workers stuck 14 km in, 400 metres below surface
Deccan Chronicle
SLBC Tunnel: December 2026 completion deadline now unlikely
Deccan Chronicle
Eight workers trapped after Srisailam Left Bank Canal tunnel’s roof caves in
New Indian Express
SLBC tunnel in 2 years to boost regional infra: Minister
Deccan Chronicle
Srisailam Left Bank Canal Tunnel Work to Resume Soon
Deccan Chronicle
Uttam Kumar Reddy Warns of 'World's Largest Irrigation Tunnel' for Telangana
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