The effect of the order is to temporarily prohibit traffic on a length of the A470 trunk road at Bwlch y Garreg, east of Llangurig, Powys to undertake works on or near the road.
Effaith y Gorchymyn yw cyfyngu a gwahardd traffig dros dro ar ddarn o gefnffordd yr A470 rhwng Llanfair-ym-Muallt a Llangurig, Powys er mwyn gwneud gwaith ar y ffordd, neu gerllaw iddi.