The MTA will build 92 elevated platforms along its Metro North Hudson line to prevent more storm surge damage to its equipment.

The agency plans to spend millions of dollars to build the platforms so that it can hoist up its power, communication, and signal systems.

The platforms will line the tracks between the South Bronx and Croton-Harmon.

More than 50 percent of the Hudson Line was inundated with salt water during Superstorm Sandy, creating conditions that severely compromised the life of the equipment. The flood caused the line to be down for a couple of days after the destructive 2012 storm.

The MTA will use $20 million in federal funds and $6.9 million of its own money on the build. Officials said design work on the project has already started, but they did not know when construction would start or how long it would take to complete.