The effect of the Order is to temporarily prohibit vehicles on a length of the A40 trunk at Abergavenny, Monmouthshire to undertake works on or near the road.
Effaith y Gorchymyn yw gwahardd cerbydau dros dro ar ddarn o gefnffordd yr A40 yn y Fenni, Sir Fynwy er mwyn gwneud gwaith ar y ffordd neu gerllaw iddi.