http://www.legislation.gov.uk/wsi/2016/493/madeThe A470 Trunk Road (Maenan to Pentrefelin, Conwy County Borough) (Temporary Prohibition of Vehicles & 30 mph Speed Limit) Order 2016Gorchymyn Cefnffordd yr A470 (Maenan i Bentrefelin, Bwrdeistref Sirol Conwy) (Gwahardd Cerbydau a Therfyn Cyflymder 30 mya Dros Dro) 2016King's Printer of Acts of Parliament2016-04-13