No Roosevelt Island F Train service to Manhattan this weekend and every weekend thru end of January.

According to the MTA:

TRACK MAINTENANCE Weekends until Jan 28 From 11:45 PM Friday to 5 AM Monday Coney Island-bound F trains run via the E from Roosevelt Av in Queens to 5 Av/53 St in Manhattan

Trains resume regular service at 47-50 Sts.

No Coney Island-bound F service at 21 St-Queensbridge, Roosevelt Island, Lexington Av/63 St and 57 St.

Travel Alternatives:

For service to these stations, take the F to 47-50 Sts and transfer to a Jamaica-bound F.

For service from 21 St-Queensbridge and Roosevelt Island, take the F to Roosevelt Av and transfer to a Coney Island-bound F.

Also, both Tram Cabins operating at full capacity. And, there is Roosevelt Island ferry service on the Astoria Route. Here’s the Winter Schedule for Roosevelt Island ferry service.