Starting Jan. 4, all trips between Colman Dock, Bainbridge Island and Bremerton will follow a temporary sailing schedule as construction to replace the current seismically vulnerable ferry terminal in Seattle moves forward, according to Washington State Ferries.

During the temporary sailing schedule, which will be in effect until Jan. 20, all Bainbridge Island and Bremerton sailings will operate out of a single slip. That means some crossings may take longer to prevent more than one ferry from arriving or departing the slip at the same time, according to a WSF news release.

Most departure times will shift between five and 30 minutes, but sailings later in the evening may shift to as long as one hour. WSF is working with Kitsap Transit to maintain as many bus connections as possible that coincide with the temporary sailing schedule for ferry customers.

Operating from one slip gives more space for WSF contractors to efficiently complete critical work on the north side of the dock. The work will include removing the remainder of the old terminal and the old wooden piles, and driving in new steel piles to support the deck for the new passenger terminal.

“We know that schedule changes have an effect on our customers’ daily lives and we do not make these decisions lightly,” said David Sowers, WSF terminal engineering director.

“As with any construction project, sometimes work takes a little longer. Operating from one slip for this period provides more space for the contractor to efficiently finish critical work on the north side of the dock.”

WSF listed some tips to prepare for the upcoming schedule changes for the Bainbridge Island and Bremerton routes:Check the schedule: Departure times will be different, beginning with the first sailing on Jan. 4. Check the temporary sailing schedule in advance.

Plan ahead: There are changes throughout the temporary schedule. These changes may result in heavier traffic at ferry terminals.

Know before you go: Check Vessel Watch, subscribe to route alerts and download the WSDOT app to get real-time status of your ferry’s location on the route.

Add extra travel time: Crossing times could be longer for certain sailings since both routes share the single slip.

Consider alternative work schedules: Customers may want to look into teleworking during this period or, if transit connections are an issue, investigating different Ride Share opportunities.