The effect of the order is to temporarily restrict and prohibit traffic on a length of the A458 trunk road between Mallwyd and Nant yr Ehedydd, Gwynedd to undertake works on or near the road.
Bydd y Gorchymyn yn gwahardd a chyfyngu ar draffig dros dro ar ddarn o gefnfffordd yr A458 rhwng Mallwyd a Nant yr Ehedydd.