The effect of the Order is to temporarily prohibit and restrict traffic on lengths of the A55 trunk road at or near the Conwy Tunnel, Conwy to undertake works on or near the tunnel and road.
Effaith y Gorchymyn yw gwahardd a chyfyngu ar draffig dros dro ar ddarnau o gefnffordd yr A55 wrth Dwnnel Cowny, Conwy er mwyn gwneud gwaith ar y twnnel a’r ffordd neu gerllaw iddynt.