Powai Lake

Powai Lake is a well-known artificial lake in Powai, Mumbai, Maharashtra, and one of the city’s prominent natural landmarks.

Powai Lake is an artificial lake located in the Powai valley of Mumbai, Maharashtra, India. Constructed in 1891 during British rule, it was originally intended to supplement Mumbai’s (then Bombay) drinking water supply. However, due to water quality issues from pollution and siltation, it was abandoned for potable use and now serves recreational, ecological, and industrial non-domestic purposes. 

The lake spans approximately 2.1 km² (520 acres) and has a maximum depth of 12 m (39 ft), though silt accumulation has reduced depth in some areas to as little as 0.33 m. 

 It lies at an elevation of 58.5 m and drains a catchment area of 6.61 km². 

Overflow from the lake feeds into the Mithi River.

Environmental and Conservation Status

Over the years, Powai Lake has faced severe environmental degradation due to untreated sewage, solid waste dumping, water hyacinth infestation, and siltation. 

The water is now deemed unfit for drinking. Despite this, it supports a rich ecosystem, including at least 18 Indian marsh crocodiles (per a 2022 BMC census) and diverse birdlife, making it a site for birdwatching and ecological interest. 

The Maharashtra State Angling Association (MSAA) manages the lake and has initiated conservation efforts, including weed removal and water quality monitoring. 

The Brihanmumbai Municipal Corporation (BMC) plans a $9 million desilting project to restore its depth and health. It was also included in the National Lake Conservation Plan (NLCP) in 1995, with restoration work beginning in 2002.

Surrounding Area and Accessibility

The lake is surrounded by prominent institutions like IIT Bombay and IIM Mumbai (NITIE), and upscale developments such as Hiranandani Gardens. It is a popular spot for jogging, boating, picnics, and photography, with a 5-km paved promenade encircling the lake.