Transportation & Mobility · Completed
Mumbai Coastal Road Tunnel
Mumbai, Maharashtra · Municipal Corporation · 2024
₹3,950 CrContract value · 44 months
Project overview
TBM · 12.2 m bore · Twin tube
Twin 2.07-kilometre road tunnels driven by a 12.2-metre tunnel-boring machine beneath a live metropolis and the sea — among the largest-diameter bores in the country.
Tunnel length2 × 2.07 km
Bore diameter12.2 m
Min. cover10 m below seabed
Contract value₹3,950 Cr
Duration44 months
Scope of work
- Slurry TBM drive with segmental lining
- Cross-passages and emergency egress
- Saccardo tunnel ventilation system
- Fire-life-safety, SCADA and lighting
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