 In the winter of 2013 , many of the tracks and signal panels began to arrive at the construction site , to be installed on the line over the next few years . It was reported in November 2013 that one third of the tracks for the line had arrived , for the segments of track between 87th and 105th Streets ; the tracks were being stored at 96th Street station . As of May 21 , 2015 , the first phase of construction was more than 80 % complete . By August 2015 , the construction project was 84 @.@ 3 % complete , with all 10 Phase 1 construction contracts having been awarded and 5 of them having been completed . As of July 1 , 2016 , the first phase was 96 @.@ 3 % complete . 
