Portland is an inland port city that rose to importance in the mid-19th century as a major shipping point for the Pacific Northwest's wheat, lumber, and other commodities. The Columbia and Willamette Rivers enabled seagoing vessels to reach the port, but they also presented obstacles to local travel and commerce. Willamette River ferry service was available by 1853, but Portlanders had to wait until 1887 for a bridge. The first was the Morrison Bridge,...