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Mumbai controls several dams in Shahapur Taluka (Thane district) that deliver water to the city. The Western Ghats trap most of the moisture-laden monsoon clouds, which feed these dammed rivers. Currently, these dams/lakes deliver approximately 3.4 billion litres of water to Mumbai daily.
Dam[1] | Year[2] | Capacity (Million Litres) |
Overflow Level (Metres)[3] |
---|---|---|---|
Vihar Lake | 1860 & 1872 | 25,698 | 80.42 |
Tulsi Lake | 1872 | 8,046 | 139.17 |
Tansa | 1892 (Stage-I)
1915 (Stage-II) 1925 (Stage-III) 1948 (Stage-IV) |
145,080 | 128.63 |
Modak Sagar (Lower Vaitarna) |
1954 & 1957 | 128,925 | 163.15 |
Upper Vaitarna | 1972 | 227,047 | 603.51 |
Bhatsa | 1980 to 2007 | 717,037 | 142.07 |
Middle Vaitarna[4] | 2014 | 193,530 | 285.00 |
Tansa and Vaitarna dams supply the Southern region of Mumbai, while the rest supply the suburbs. An underground tank in Malabar Hill is used to store the water.[5]