in the 60's and 70's Grain from the midwest fields is transported by train in both hoppers and in box cars. The Port of Portland grain complex on the OWNRy is set up to accomodate unloading of both types of cars. Midwest railroad yardmasters, in their eagerness to get cars out of their yards, however do not sort or block the grain cars by type, often leaving it to the Portland local to sort the cars prior to delivery. trains deliver 10-12 cars at a time then pick up the empties to be returned to the midwest for future shipments.
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