Orange Line riders take note:
There are bus diversions between Oak Grove and Sullivan Square on Saturday and Sunday.
During the diversion, buses will make stops at all stations between Oak Grove and Sullivan Station.
The diversion will allow workers to perform track, power and signal work for the new Assembly Square Orange Line station that is under construction, according to the MBTA.
Construction on the new Assembly Square station will lead to periodic Orange Line diversions until the station is complete in fall of 2014.