The line is closed between Ravensthorpe and Leeds through Dewsbury, with the number of trains between Huddersfield and Leeds being reduced and diverted through Wakefield with extended journey times. There is also a replacement bus Huddersfield-Dewsbury-Leeds.
Note also that although the service frequency will be broadly as normal at Slaithwaite and Marsden, some of the timings may be a few minutes different.
Here’s a helpful plan.
Some different timetable changes will apply on weekends in June.
Check changes and timings at Planned Engineering Works | TransPennine Express.