U.S. Federal Route 1 is a north-south highway in Southern Baltimore County. This is in two sections. The sections are split by the Independant City of Baltimore. The northern section runs from the Harford/Baltimore County Line, near Pleasant Hills, to the Baltimore County/City of Baltimore Line, near Overlea. West of the City of Baltimore, is the western section; the western section runs near Halethorpe. Info on each section is below. Northern SectionSouthern Section