From 9:45 PM Friday, August 3 to 5:00 AM Monday, August 6 Brooklyn bound F trains are being diverted to the A/C line between 50th Street in Manhattan and Jay Street-MetroTech, so there will be no service from Manhattan to York Street in DUMBO, nor from the LES stops on the F. To get from the LES stops to Brooklyn take a Manhattan bound F to West 4th and change there for a Brooklyn bound A, C, or F. Late nights from 11:45 PM to 5:00 AM Friday to Monday there will be no R service between Whitehall Street (which is where R trains terminate and originate during these late night hours) and Atlantic Avenue-Barclays Center, but N trains should provide normal late night service in both directions at Court and Jay streets. To get to Bay Ridge, take an N to Atlantic and change there for an R train.
The following work week – Monday, August 6 to Friday, August 10 – each night from 10:00 PM to 5:00 AM there will be no 3 trains running, but 2 trains should be running normally. 4 trains will provide alternative service to 3 train stops from Atlantic Avenue to New Lots Avenue. Each night from 10:00 PM to 5:00 AM there will be extra service in both directions at Court Street and Jay Street-MetroTech, as Q trains will be diverted to the R/N line between DeKalb Avenue and Canal Street.
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.