The Brihanmumbai Municipal Corporation (BMC) has decided to replace the tetrapods along Marine Drive. The new tetrapods will be effective for the next 100 years.
The BMC administration recently approved the proposal to replace old tetrapods at Marine Drive. As per the proposal, the old tetrapods were placed between 1960 and 1965, while some tetrapods were replaced between 1982 and 2002. The tetrapods were made of M20 grade cement and had a lifespan of around 40 years, which is complete. 

Some tetrapods were damaged due to Cyclone Nisarga. There was also a need to remove some tetrapods due to the Coastal Road project. “It’s not feasible to shift the tetrapods back in place. So we have decided to replace old ones as their lifespan has finished,” said a civic official.