AMP: 0
Location: Old Shetucket Tpk and Shetucket Tpk, Preston
No signage as SR 605 begins. 605 is a cutoff along an old Shetucket Turnpike alignment to CT 164 south.
AMP: 0
Location: Old Shetucket Tpk and Preston Plains Rd, Preston
A third of a mile later, SR 605 ends at CT 164. Turn left for 164 north and right for 164 south.
