Pipe Ramming / Uttarakhand
Silkyara Tunnel Rescue
65 Mtr / 900 mm / NHIDCL / PMO / Uttarakhand
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Execution & Technical Scope
On 12 November 2023, a section of the Silkyara Bend–Barkot tunnel, planned to connect National Highway 134 in the Uttarkashi district of Uttarakhand, India, caved in during construction. The collapse occurred at around 05:30 IST and trapped 41 workers inside the tunnel.[1][2] Rescue operations were immediately launched, with a number of government agencies involved, including the National Disaster Response Force, the State Disaster Response Force, Uttarakhand Police, engineers from the Indian Army Corps of Engineers, and Project Shivalik of the Border Roads Organisation. Numerous private resources inlcuding Trenchless Engineering Services Pvt Ltd were utilized in the rescue efforts as well.
Site Photos & Visual Records

Key Statistics
- Length65 Mtr
- Diameter900 mm
- Depth21 Mtr
- GeologyRock
- Equipment500 Ton Auger Boring Machine
- Client / OwnerNHIDCL / PMO
- LocationUttarakhand
- Year Completed2023