The car ferry manifests from 1971 show very few cars with BN reporting marks and lots of the predecessor roads (GN, NP, CBQ).  The 1975 manifests list a lot more cars witn BN reporting marks as would be expected.  Lumber in boxcars and on bulkhead flatcars  was a common commodity.  Also Western Fruit Express insulated boxcars and mech reefers were common too.  Note that eastbound traffic was almost double that of westbound cars.