Connecticut State Route 3 is a north-south highway in Hartford County. West of the Connecticut River, it follows the Interstate 91 corridor. CT St Rt 3 passes through the following towns in Hartford County. Glastonbury Wethersfield Rocky Hill CT St Rt 3 is multi-plexed in Hartford County. Connecticut Stte Route 160, at Rocky Hill. CT St Rt 3 crosses the following highways in Hartford County. Connecticut State Route 2, near Glastonbury. Interstate 91, at Wethersfield. Connecticut State Route 99, at Wethersfield. Connecticut State Route 287, at Wethersfield. Connecticut State Route 160, at Rocky Hill. Connecticut State Route 160, at Rocky Hill. Interstate 91, at Rocky Hill. (NO Interchange)
