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BMC Builds 11km Tunnel for Mumbai Sewage Reuse
31 Jan
Summary
- An 11km water tunnel is being built to transport treated sewage.
- The tunnel will link Ghatkopar and Bhandup sewage treatment plants.
- Tunnel boring machines will be used for construction of the tunnels.

Mumbai is advancing its water management strategy with the construction of an 11.61-kilometer water tunnel. This significant infrastructure project aims to transport tertiary treated sewage water from the Ghatkopar sewage treatment plant to the Bhandup sewage treatment plant, ultimately reaching the Bhandup water complex.
The project involves two tunnel segments: one spanning 4.3 kilometers between the Bhandup sewage treatment plant and the Bhandup complex, and another 7.2-kilometer tunnel connecting the Bhandup sewage treatment plant to the Ghatkopar sewage treatment plant. Tunnel boring machines will be employed for excavation.
Preliminary works are already underway at the Bhandup worksite, including the construction of a 175-meter deep launching shaft. As of the current date, excavation for this shaft has reached 45 meters, with another launching shaft near the Bhandup sewage treatment facility having 7.7 meters excavated.




