In what could be a permanent solution to Mumbai’s railway flooding problem, the Mumbai Railway Vikas Corporation (MRVC) has proposed a study on flood assessment and mitigation measures, exploring the Japanese model of underground holding ponds. These ponds could store water during high tides, preventing waterlogging once and for all.
 
Tokyo’s Metropolitan Area Outer Underground Discharge Channel (MAOUDC), known for its massive ‘floodwater cathedral,’ is an engineering marvel completed in 2006 after 13 years of construction. It is the world’s largest floodwater diversion facility, featuring enormous 70-metre-tall cylindrical tanks. If approved, similar systems could be implemented at critical locations along Mumbai’s railway network. This study is part of the Mumbai Urban Transport Project (MUTP) 3B and may be included in MUTP 4 for execution.

Central and Western Railways have been working on micro-tunnelling to drain floodwater