Delhi Metro Phase 4: First twin tunnels breakthrough completed, 3 km long tunnels built 14-15 metres underground
- Posted on September 18, 2024
- By Financial Express
- 1 Views
Delhi Metro Phase 4: First twin tunnels breakthrough completed, 3 km long tunnels built 14-15 metres underground
Marking the completion of the 3-kilometre-long twin tunnels linking Derawal Nagar to Pulbangash on the Janakpuri West - R K Ashram corridor, the twin tunnel boring machines (TBMs) emerged concurrently at Pulbangash Metro Station.
