Archive · 22 Jul 2026
Mumbai's Kasheli-Mulund Water Tunnel Project Advances
The Brihanmumbai Municipal Corporation (BMC) is starting a big project to build a water tunnel in Mumbai.
This tunnel will help bring water from one place to another more efficiently.
The tunnel is 7.13 kilometers long and 4.5 meters wide.
They are using a special machine called a Tunnel Boring Machine (TBM) to dig the tunnel.
The project started in September 2024 and is expected to be finished by October 2030.
The BMC is also working on another tunnel to carry treated wastewater, which will help save water for other uses.
The project aims to make Mumbai's water supply more reliable and sustainable.
The BMC is set to begin tunnel boring for the Kasheli-Mulund water tunnel by September 2024.
The 7.13-km-long, 4.5-metre-diameter tunnel is expected to be completed by October 2030.
The project aims to improve Mumbai's water distribution efficiency and reduce transmission losses.
All components of the 5.3-metre-diameter TBM and the 14-km-long conveyor system have reached the project site.
The BMC is also constructing a wastewater tunnel to transport tertiary-treated wastewater, with tunnel boring scheduled to begin in January 2027.
- Who
- Brihanmumbai Municipal Corporation (BMC)
- What
- Construction of the Kasheli-Mulund water tunnel
- When
- Tunnel boring to begin by September 2024, completion by October 2030
- Where
- Mumbai, India
- Why
- To improve water distribution efficiency and reduce transmission losses
Project Supporters
Project Critics
Project Benefits
Project Supporters
The project will improve water distribution efficiency and reduce transmission losses.
Project Critics
The project is expensive and may not justify the cost given the long completion timeline.
Environmental Impact
Project Supporters
The project will enhance water sustainability by reducing dependence on potable water.
Project Critics
The construction process may cause environmental disruptions and pollution.
- Project Length
- 7.13 km
- Project Diameter
- 4.5 meters
- Expected Completion
- October 2030
- TBM Diameter
- 5.3 meters
- Conveyor System Length
- 14 km
- Recovery Shaft Depth
- 128 meters
- Launching Shaft Depth
- 134 meters
- Assembly Tunnel Length
- 95 meters
- Tail Tunnel Length
- 40 meters
- Tube Tunnel Length
- 25 meters