In the days when the A51 went straight through Nantwich, the road passing to the north of the town was the B5073.
Starting on the A530 to the north of the town centre the road headed northwest to cross the River Weaver then westwards across Rease Heath. After crossing the Shropshire Union Canal the road ended on the A51.
The entire road was later upgraded to A-road status when the A51 was re-routed along the B5073 to avoid the very centre of town. Later still, when the whole Nantwich bypass was numbered A51, the first section of ex-B5073 heading out of town became an extension of the B5074.