It’s a three-peat of subway turmoil this coming weekend. From 11:45 p.m. Friday, July 29 to 5:00 a.m. Monday, August 1 there will be no service in either direction at the 4/5 platforms at Borough Hall, as 4 trains will terminate and originate at Bowling Green in Manhattan, and 5 trains do not serve Brooklyn on weekends. During the same time period, A and C trains running in both directions will be diverted to the F line between Jay Street-Metro Tech and West 4th Street, so there will be no service in either direction at High Street. For service to or from Manhattan, use the 2 or 3 to or from Clark Street or Borough Hall, the R or (late night) N to or from Court Street, or the A or C to or from York Street or Jay Street-Metro Tech.
Late nights (11:15 p.m. to 5:00 a.m.) the following week; Monday, August 1 to Friday, August 5, Brooklyn bound F trains will be diverted to the A line between West 4th Street and Jay Street-Metro Tech, so there will be no service from Manhattan to York Street in DUMBO. To get to Brooklyn from LES stops on the F during these hours, take a Manhattan bound F to West 4th and change there for a Brooklyn bound A or F.
For planned service changes that may affect travel on other parts of the system, either during the weekend or the following week, see MTA Info or The Weekender.