The effect of the order is to temporarily prohibit vehicles on a length of the A44 trunk road between Pont Dolau and Glanyrafon, Ceredigion to undertake works on or near the road.
Effaith y gorchymyn yw cyfyngu a gwahardd traffig dros dro ar ddarnau o gefnffordd yr A494 rhwng Ewloe Green, Sir y Fflint a Dolgellau, Gwynedd er mwyn gwneud gwaith ar y ffordd neu gerllaw iddi.