The A494 or officially the ""Dolgellau to South of Birkenhead Trunk Road"", is a trunk road which spans from the terminus of the M56 near Saughall, Cheshire, the dual-carriageway then continues into Wales, crossing through to Queensferry, before reaching the Ewloe interchange with the A55, this section of the road from Saughall is part of the E-road E22. It then becomes a single-carriageway continuing through to Mold, and Ruthin, before multiplexing with the A5 near Corwen. It enters Snowdonia National Park, near Bala, passes Llyn Tegid, then terminates at Dolgellau.