Mumbai: BMC Completes Breakthrough Of 5.8-Km Borivali-Malvani Sewage Tunnel, Project 90 Per Cent Complete
Mumbai, October 9, 2026: In a significant boost to Mumbai’s sewage management and pollution-control efforts, the BMC has achieved the final breakthrough of a 5.8-km underground sewage tunnel linking Don Bosco School Junction in Borivali with the New Malad Pumping Station in Malvani. The milestone marks a major step forward in Phase I of the civic body’s Priority Sewer Tunnel Project, which is 90%…
Mumbai, October 9, 2026 - The Brihanmumbai Municipal Corporation (BMC) has successfully completed the construction of a landmark 5.8-kilometer underground sewage tunnel in the Borivali-Malvani area, bringing Phase I of the Priority Sewer Tunnel Project to a crucial milestone. This achievement marks a significant advancement in the city's sewage management and pollution-control strategies, with the project expected to be fully completed by July 31, 2027.
The 3.2-meter diameter tunnel, constructed using cutting-edge segmental lining technology, boasts an impressive sewage-carrying capacity of 1,182 million liters per day (MLD). This impressive infrastructure comprises five shafts, three drop shafts, and six screen chambers, all designed to alleviate the chronic overloading of Mumbai's western suburbs' existing sewer network.
By boosting sewage-carrying capacity across key areas such as Dahisar, Borivali, Gorai, Shimpoli, and Charkop, Phase I of the project is projected to increase the overall capacity from 1,136 MLD to a more manageable level. This reduction in pressure on the existing sewer network is expected to minimize the risk of sewage overflows, ultimately contributing to a cleaner and healthier urban environment.
Moreover, the tunnel will divert sewage currently handled by pumping stations at Gorai, Shimpoli, Charkop, and Malad. This strategic shift could potentially eliminate the need for these facilities, leading to substantial savings on maintenance and repair costs in the long run. By strengthening sewage conveyance and reducing the burden on the current infrastructure, the project aims to enhance wastewater management and support Mumbai's ongoing efforts to curb pollution in the city's rivers and coastal waters.
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