BNSF spokesman Gus Melonas says crews quickly cleared the debris so freight trains can continue to roll. But Amtrak and Sounder passenger trains will have to observe a 48-hour safety moratorium until 10:40 p.m. Saturday.
As a result, the special north line Sounder train that was scheduled to serve Saturday's Sounders match at CenturyLink Field has been canceled, said Sound Transit spokeswoman Kimberly Reason.
However, the special game day service between Lakewood and Seattle is not affected and will operate for opening day match, she said.
Melonas says nine mudslides have blocked tracks north of Seattle this rainy season, compared to 60 last season on the stretch along Puget Sound under a bluff.