The effect of the order is to temporarily restrict and prohibit traffic on lengths of the A470 trunk road between Llangurig and Mallwyd to undertake works on or near the road.
Effaith y gorchymyn yw cyfyngu a gwahardd traffig dros dro ar ddarnau o gefnffordd yr A470 rhwng Llangurig a Mallwyd er mwyn gwneud gwaith ar y ffordd neu gerllaw iddi.