Connecticut State Route 63 is a north-south highway in Western New Haven County. It runs from New Haven, north to the New Haven/Litchfield County Line, near Waterbury. CT St Rt 63 passes through the following towns in New Haven County. New Haven Bethany Naugatuck Waterbury CT St Rt 63 is multi-plexed in New Haven County.Connecticut State Route 42, near Bethany. Connecitcut State Route 64, near Waterbury. CT St Rt 63 intersects the following highways in New Haven County. Connecticut State Route 10, at New Haven. Connecticut State Route 243, near New Haven. Connecticut State Route 122, near New Haven. Connecticut State Route 69, near New Haven. Connecticut State Route 15, near New Haven. Connecticut State Route 114, near Woodbridge. Connecticut State Route 67, near Woodbridge. Connecticut State Route 42, near Bethany. Connecticut State Route 42, near Bethany. Connecticut State Route 8, near Naugatuck. Connecticut State Route 68, near Naugatuck. Connecticut State Route 188, near Waterbury. Interstate 84, near Waterbury. Connecticut State Route 64, near Waterbury. Connecticut State Route 64, near Waterbury.
