AMP: 46 Location: Columbus Ave and Ella T Grasso Blvd, New Haven Reassurance shield after CT 10. US 1 will now somehow sneak almost all the way through New Haven without directly intersecting any other routes. AMP: 47 Location: Columbus Ave and Church St, New Haven Several blocks later, US 1 will make a right … Continue reading U.S. Route 1, CT 10 to CT 337