BART is preparing riders for a major project that will shut down the track between Orinda and Walnut Creek stations over six weekends.
The first shutdown is this weekend.
Crews will be replacing 50-year-old track components in work funded by Measure RR.
There will be free buses between the stations, but riders can expect delays of 40 minutes or more.
Also, just an FYI that two lanes on eastbound Highway 24 near the Lafayette Station will also be closed so BART can position a 265-ton crane.