ROSEBURG Man arrested after striking sign, speeding A Roseburg man was arrested Tuesday after reportedly driving on a sidewalk, striking a “no parking” sign and continuing east on Diamond Lake Boulevard at speeds approaching 100 mph. Police received a call at 4:42 p.m. of a man driving erratically on Diamond Lake. After hitting the sign, the 1984 Subaru coupe swerved back and forth on the road and nearly struck several cars, according to Roseburg police. Police Detective Joe Kaney was returning from a gun range in Glide when he spotted the vehicle driven by a man later identified as Gregory …