All traffic lanes and the right shoulder have been reopened on the inner loop of Interstate 695 in Towson, where a Friday morning collision involving five vehicles had shut down all inner loop traffic, state transportation officials said. The collision, first reported by the state Department of Transportation at 5:57 a.m., continues to block the inner loop left shoulder, DOT said. DOT added that a Thursday afternoon utility problem at U.S. 1 South in Baltimore County continues to cause lane closures on Friday morning. The incident has closed the southbound right shoulder, DOT said. The Maryland Transit Administration reported minor MARC train delays at 7:01 a.m.