Third mountain tunnel (MT-07) construction completed successfully in Ambesari village, Dahanu Taluka, Palghar district, Maharashtra
Tunnel MT-07 is 417 meters long and 14.4 meters wide
Tunnel designed for smooth operation of high-speed bullet trains with advanced monitoring and safety systems
Three mountain tunnels completed in Maharashtra within five months
Excavation was done from both ends using controlled drilling and blasting method
Advanced engineering and safety protocols followed during construction
Used state-of-the-art monitoring systems and geotechnical instruments including Surface Settlement Points (SSP), 3D targets, strain gauges, and seismographs
Real-time monitoring of vibrations, tunnel activity, and surrounding structures maintained
Comprehensive worker safety measures implemented including ventilation systems, fire safety arrangements, controlled access, and continuous geotechnical supervision
First mountain tunnel (MT-05) completed on 2 January 2026 near Safale in Palghar district - 1.5 km long
Second tunnel (MT-06) completed on 3 February 2026 using New Austrian Tunneling Method (NATM) - 454 meters long
Seven mountain tunnels under construction in Maharashtra
MT-08 (350 meters) excavation completed on 5 October 2023
MT-03 excavation more than 80% complete
MT-04 approximately 60% complete
MT-01 and MT-02 work ongoing continuously
Total eight mountain tunnels in Mumbai-Ahmedabad Bullet Train project
Seven tunnels located in Palghar district, Maharashtra
One tunnel in Valsad district, Gujarat (already completed)
All three mountain tunnels between Vapi and Boisar Bullet Train stations successfully completed
Corridor passes through important industrial area between Boisar (Maharashtra) and Vapi (Gujarat)
