The Welsh Ministers are considering implementing a project to replace the existing A55 trunk road junction 16 roundabout at Penmaenmawr.
Dadansoddiad o effaith gwelliannau arfaethedig i’r ffordd ddeuol ar ardaloedd cadwraeth arbennig Blaen Cynon a Brynbuga a’r safleoedd ystlumod yno.