There were no injuries reported and no spills of any kind, The Oregonian reported.
Reports from the scene said it appeared six or seven cars had overturned and the others, including two locomotives, hopped the tracks but remained upright.
The cargo is believed to belong to the Hampton Lumber Co., the newspaper said. Hampton is a privately owned forest products company operating seven sawmills in Oregon, Washington state and British Columbia.
Swim Week Miami Beach 2014 [PHOTOS]