Thane–Borivali Twin Tunnel Route Map, Status & Latest Updates
The Thane–Borivali Twin Tunnel project is a proposed underground road bypass designed to connect Thane and Borivali, running underneath Sanjay Gandhi National Park (SGNP) to establish direct east-west suburban connectivity.
Mumbai's landmark 11.8 km twin underground road tunnels passing beneath Sanjay Gandhi National Park, cutting travel times from 1.5 hours to under 20 minutes.
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Thane–Borivali Twin Tunnel Status & Latest Update
Pre-construction mobilization, geotechnical studies, and environmental alignment reviews are actively progressing for the portals. Portal design works are currently underway.
MMRDA and Megha Engineering & Infrastructures Ltd (MEIL) are finalizing site setups to begin excavation and shaft development at both ends of Sanjay Gandhi National Park.
Thane–Borivali Twin Tunnel Route Map & Alignment
The tunnel passes deep beneath the forest reserves of Sanjay Gandhi National Park, starting from Tikuji-ni-Wadi in Thane and emerging at Ekta Nagar near Borivali.
Thane–Borivali Twin Tunnel Route Map
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Thane–Borivali Twin Tunnel Project Details
The Thane–Borivali Twin Tunnel project is designed to drastically improve connectivity between Thane and the Western Suburbs, bypassing congested mountain roads and traffic choke points.
- Total Tunnel Length: Approximately 11.8 km of twin access-controlled road tunnels.
- Tunnel Segment: Access-controlled 3+3 lane design built using tunnel boring machines under Sanjay Gandhi National Park.
- Interchanges: Grade-separated connections at Ghodbunder Road in Thane and Western Express Highway in Borivali.
- Implementing Agency: Developed under MMRDA oversight.
- Estimated Cost: Approximately ₹16,600 Crore.
Thane–Borivali Twin Tunnel Key Facts
Thane–Borivali Tunnel Timeline
| Year | Event |
|---|---|
| 2019 | MMRDA approves the pre-feasibility study for the tunnel |
| 2023 | MMRDA awards construction tenders to Megha Engineering & Infrastructures Ltd |
| 2026 | Geotechnical studies and portal design mobilization active |
| 2029 | Targeted opening and operations timeline |
Why the Thane–Borivali Tunnel Matters
Eco-Friendly Underground Bypass
Tunnels run deep beneath Sanjay Gandhi National Park, ensuring zero disturbance to the surface forest cover and wildlife.
Suburban Connectivity
Establishes a direct high-speed connection between Thane (Eastern suburb) and Borivali (Western suburb).
Massive Travel Time Cuts
Slashes transit times between Thane and Borivali from 1.5 hours to under 20 minutes.
Advanced Tunneling Engineering
Utilizes ultra-large Tunnel Boring Machines (TBMs) to excavate through challenging basalt rock strata.
Package Parameters
| Parameter | Details |
|---|---|
| Project Name | Thane–Borivali Twin Tunnel |
| Proposed Length | ~11.8 km (tunnel segment) |
| Implementing Agency | MMRDA (Mumbai Metropolitan Region Development Authority) |
| Current Phase | Under Construction |
| East Terminal | Tikuji-ni-Wadi, Thane |
| West Terminal | Ekta Nagar, Borivali |
| Feature | 3 lanes in each tunnel + safety passages |
| Estimated Completion | 2029 (Projected) |
| Connection East | Ghodbunder Road / Eastern Express Highway |
| Connection West | Western Express Highway (WEH) |
Thane–Borivali Tunnel FAQ
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