In a push to expand Mumbai’s sewerage network, the Brihanmumbai Municipal Corporation (BMC) plans to develop new connecting sewerage channels at Dahisar, Kandivali and Bandra through the microtunnelling method.
The civic body announced that concrete channels with diameters of 800 mm and 1,200 mm will be laid along cemented, traffic-prone routes of the corporation’s H/West ward which covers western areas of Bandra, Khar and Santacruz , R/North division which includes Dahisar and R/South which encompasses Kandivali.
To prevent disturbance to regular traffic flow, the civic administration will employ the microtunnelling technique.
Microtunnelling is a trench-less solution for constructing small diameter tunnels, used especially for projects that require the tunnel to cross under dense traffic roads, railways and rivers.
While Mumbai city has an existing labyrinth of 2,026 km- long sewerage channels, the BMC has taken up the cudgels to expand this network as well as repair the dilapidated existing channels over the course of the next two years.
According to the civic body officials, a new 735 metre-long channel will be laid to increase the carrying capacity of existing sewerage network along Kandivali’s Road no. 1, 2 and 3.
Besides this, sewage lines will be built from Lokhandwala’s 120 feet road to Dnyaneshwar Chowk in Kandivali east, using the micro tunnelling method to ensure seamless movement of heavy traffic.
Furthermore, while a 755-metre long channel will be constructed through the same technique between the busy route from H/West division’s Babasaheb Ambedkar Junction to National college, a 940 metre channel is slated to be developed along the concretised route between Hanuman Tekdi to Owri Metro Station Junction in Dahisar.
Meanwhile, the BMC has also given the approval to lay a long sewer line in R/north ward’s Vrinda road.