The only planned subway service change this weekend directly negatively affecting local stations is that from late evening Friday, June 10 to early Monday morning, June 13 there will be no Brooklyn bound service at High Street, as A and C trains will be diverted to the F line between 34th Street-Herald Square in Manhattan to Jay Street-MetroTech in Brooklyn. From Saturday morning to Sunday evening there will be extra service in both directions at Court Street (remember, you will have to enter via the Borough Hall station while the elevators are being replaced at the entrance on Montague) and at the N/R platfroms at Jay Street-MetroTech, as N trains, which normally go over the Manhattan Bridge, will be diverted to the R line between Canal Street in Manhattan and DeKalb Avenue in Brooklyn.
The following work week — early Monday morning, June 13 to early Friday evening, June 17, late nights there will be no 2 0r 3 train service in either direction at Borough Hall or Clark Street; Use 4, A, C, or N trains instead. 4 trains will be making 3 stops between Nevins Street and New Lots Avenue. All week there will be no late night R service in either direction, but N trains should be running normally. To get to or from Bay Ridge transfer between the N and a free shuttle bus at 59th Street.
These are the planned service changes directly affecting service at local stations. Always check MTA Info for unplanned service changes that may affect local service or service on other parts of your trip, or for planned service changes that affect stations to or from which you may be traveling.