Maryland State Route 3 is a north-south highway in Central Anne Arundel County. It runs from the Anne Arunel/Prince George County Line, near Crofton, to Interstate 97, near Millersville. MD St Rt 3 passes through the following towns in Anne Arundel County. Crofton Millersville MD St Rt 3 is multi-plexed in Anne Arundel County. Maryland State Route 450, near Crofton. MD St Rt 3 intersects the following highways in Anne Arundel County. Maryland State Route 450, near Crofton. Maryland State Route 462, near Crofton. Maryland State Route 175, near Millersville. Maryland State Route 32, near Millersville. Interstate 97, near Millersville.
Branches of MD St Rt 3 in Anne Arundel County. A BGS on SB I-97. A BGS on SB I-97. A BGS on SB I-97. A BGS on SB I-97. A BGS on SB I-97.