Oregon Route 42 (OR 42) is an Oregon state highway which runs between U.S. Route 101 on the Oregon Coast, near Coos Bay, and Green, a few miles south of Roseburg on Interstate 5. It is known as the Coos Bay-Roseburg Highway No. 35 (see Oregon highways and routes). At Coquille, there is a split in the route, as Oregon Route 42S heads southwest toward Bandon.The section of Oregon Route 42 between its junction with U.S.