The Coney Island Yard Complex, one of the largest rapid transit yards in North America, is entering a new phase of fortifications against severe weather events.

Following serious damage to the yard in 2012, caused by Superstorm Sandy, when more than 27 million gallons of saltwater and debris from Coney Island Creek flooded the site, damaging the tracks and cables that power the trains, the MTA has been delivering flood mitigation work.

In May 2020 it completed these works for the N Line and is now entering the phase to protect the West End D Line.

As part of these works, MTA Construction and Development will install a new floor barrier system, install a debris shield, build a 2,900ft flood wall, install  and replace existing switches (points) with new submersible switches. These works will cause service disruptions on the D Line between 18 September 2021 and 3 January 2022.
source= https://railway-news.com/nys-coney-island-yard-complex-fortifications-enter-new-phase/