This week, another “Fastrack” service outage is planned for the Lexington Avenue line through the Heights and Downtown Brooklyn. Beginning at 10 p.m. each night through Thursday, all 4/5 and 6 train service is suspended between 42 St-Grand Central and Atlantic Avenue-Barclays Center until 5 a.m. the following morning. Customers can use the 2/3 (extended to New Lots Avenue), N/R trains as substitute service. Details are available at the MTA website.
 No trains between Grand Central-42 St and Utica/New Lots Avs Service ends early in Manhattan No trains between Grand Central-42 St and Brooklyn Bridge |  |
Service operates between the Bronx and Grand Central-42 St, making local stops
along Lexington Av.
Service operates between Dyre Av and E 180 St.
• The last Manhattan-bound train departs E 180 St at approximately 9:30 PM.
• The last Bronx-bound train departs Grand Central-42 St at approximately 10:24 PM.
Source: Brooklyn Heights Blog
http://brooklynheightsblog.com/archives/42223