The trailer was carrying seed potatoes

The accident happened at the Puffin roundabout near Penmaenmawr at 0815 GMT, and officers in a passing police car stopped to help. No-one was hurt.

Three men from Conwy county council works unit, a road sweeper and a driver and digger worked for most of the morning to clear the road.

The road was partially-closed, adding to queues caused by nearby roadworks.