I know the flooding his the NW RR Museum at Snoqualmie and got into their shop, but has anyone heard if the Chehalis operation got affected? I know the waters went right through there and flooded over the BNSF/UP main nearby.

There's a post with pictures on Trainorders http://www.trainorders.com/discussion/read.php?1,1843649 a couple of days ago.

Minor damage to the track reconstruction, including at least two washouts. Initially it doesn't look anywhere near as bad as last year.

Barn and contents appears to have survived fine.