The Hawthorne Bridge in Portland, Oregon is a drawbridge. As a consequence, it has a steel deck that could be hazardous to motorcyclists. This warning sign at the west landing of the bridge communicates the idea in words and in symbols.
The Hawthorne Bridge in Portland, Oregon is a drawbridge. As a consequence, it has a steel deck that could be hazardous to motorcyclists. This warning sign at the west landing of the bridge communicates the idea in words and in symbols.