Maryland State Route 178 is a north-south highway in Central Anne Arundel County. It runs from Maryland State Route 450, near Annapolis, to Interstate 97, near Dorrs Corner. MD St Rt 178 passes through the following towns in Anne Arundel County. Crownsville Dorrs Corner MD St Rt 178 is not multi-plexed in Anne Arundel County. MD St Rt 178 intersects the following highways in Anne Arundel County. Maryland State Route 450, near Annapolis. Interstate 97, near Dorrs Corner.
A BGS on WB I-595/U.S. Rt. 50; SB U.S. Rt. 301. A BGS on SB I-97.
