This article is about the former A4052 in Carmarthen.
For the other former A4052 in Newport, see A4052 (Newport)
In the late 1960s or early 1970s, Coracle Way was built as the A40 inner bypass for Carmarthen. Once this had happened, the former route was renumbered. Part of it became the A4116, but a tiny fragment, namely Blue Street, was considered important enough to be given its own number, the A4052, and this survived until further town centre redevelopment removed all classified roads from the area.