This long New Year’s weekend, from 10:45 PM Friday, December 29 to 5:00 AM Tuesday, January 2, there will be no 2 and 3 train service (meaning no service at Clark Street or on the 2/3 platforms at Borough Hall), which will be a fact of life every weekend until sometime next summer. As usual, during the absence of 2/3 service, 4 and 5 (5 trains don’t usually serve Brooklyn on weekends) will provide alternate service to and into Brooklyn. During this time, there will also be no G train service between Hoyt-Schermerhorn and Church Avenue. A and F trains will provide alternative service.
The following work week, Tuesday, January 2 to Friday, January 5, each night from 11:45 PM to 5:00 AM, there will be no service in either direction on the 4/5 platforms at Borough Hall, as 4 trains will terminate and originate at Brooklyn Bridge, and 5 trains do not serve Brooklyn late at night. 3 trains will provide alternative service, and will serve 4 train stops for those traveling to or from Brooklyn.
For planned service changes that may affect travel on other parts of the system, either during the weekend or the following week, and for unplanned disruptions, see MTA Info.