The line was severed from the overall subway system last October due to severe damage inflicted by SuperStorm Sandy. MTA replaced 1,500 feet of subway track washed away by storm surge, and also repaired and replaced signals and communications equipment affected by flood and salt water, under its "Fix & Fortify Sandy Recovery Work" program.
MTA added a new sea wall along the elevated line going across Jamaica Bay to help shield the line from future storms, though it acknowledges the line still remains somewhat vulnerable.
Restoration of service was estimated at $650 million. MTA initially twittered its intent on May 16 to reopen the line at month's end.