The effect of the Order will be to temporarily prohibit all vehicles, cyclists and pedestrians from proceeding on lengths of the A55, A494 and A550.
Bydd y gorchymyn yn gwahardd unrhyw gerbydau, beiciau a cherddwyr rhag mynd ar rannau o’r A55, yr A494 a’r A550 am gyfnod dros dro.