That means no service between Nassau & Greenpoint Aves or to Queens. The train will run from Church St to Nassau Ave, which will be the last stop. Then you can take a shuttle service along the rest of the line.
Thanks to Hurricane Sandy the MTA has some major work to do to repair the tube. According to a NY Times report: “In the Greenpoint tube, power cables, exposed to salt water, are ‘corroding from the inside,’ the authority said, and exterior corrosion of rails and fasteners has increased the likelihood of short circuits.”
The affected weekends are July 6, July 13, July 20, Aug. 3, Aug. 10, Aug. 17, Aug. 24, Sept. 7, Sept. 28, Oct. 5, Dec. 7 and Dec. 14.