Extracted Data Points

  • Third mountain tunnel (MT-07) breakthrough achieved at Ambesari village in Dahanu Taluka of Palghar district, Maharashtra
  • MT-07 tunnel spans 417 metres in length and 14.4 metres in width
  • Tunnel designed to accommodate both up and down tracks of the Bullet Train corridor
  • Excavated through controlled drilling and blasting method from both ends
  • Three mountain tunnel breakthroughs completed in Maharashtra within the last five months
  • First mountain tunnel breakthrough (MT-05) spanning 1.5 km achieved near Saphale in Palghar district on 2 January 2026
  • Second breakthrough (MT-06) achieved on 3 February 2026, involving 454-metre-long tunnel
  • MT-06 excavated using New Austrian Tunnelling Method (NATM)
  • MT-08 (350 metre) already achieved breakthrough on 5 October 2023
  • Of seven mountain tunnels in Maharashtra: MT-05, MT-06, MT-07, and MT-08 have achieved breakthroughs
  • MT-03 has crossed 80% excavation progress
  • MT-04 has reached nearly 60% progress
  • MT-01 and MT-02 are progressing steadily
  • Total eight mountain tunnels in Mumbai–Ahmedabad Bullet Train Project: seven in Palghar district of Maharashtra, one in Valsad district of Gujarat
  • Tunnelling work in Valsad district, Gujarat already completed
  • All three mountain tunnels between Vapi and Boisar Bullet Train stations successfully excavated
  • Advanced monitoring systems deployed including Surface Settlement Points (SSP), 3D targets, strain gauges and seismographs
  • Comprehensive safety measures including ventilation systems, fire-safety arrangements, controlled access and continuous geotechnical supervision
  • Route passes through industrial region between Boisar in Maharashtra and Vapi in Gujarat