increasing capacity along the existing A548, including modifications and improvements to junctions and a new section of road between the A548 at Kelsterton and the A55 at Northop.
lle i fwy o gerbydau ar hyd yr A548 bresennol, ynghyd ag addasu a gwella cyffyrdd a rhan newydd o ffordd rhwng yr A548 yng Nghelstryn a’r A55 yn Llaneurgain.