AMP: 21 Location: I-395 and Preston Rd, Griswold Exit for CT 164 and SRs 629/630, which provide the connection from 395 north to 138. We’ll directly interchange with 138 ahead, though with no access from 395 north. N to CT 138/SR 629/SR 630, S to CT 169 N to CT 138, S to CT 165 … Continue reading Interstate 395, CT 12 to CT 164/SR 629/SR 630