Traffic is now moving on the A55 North wales Expressway after the road was shut between Junction 16a and 17 in both directions due to a fire.
The road is now open and traffic is flowing.
Fire crews were called at 10.51am to a fire in the area and cordoned off the headland stretch of the road in both directions from J17 with the A547 (Conwy Morfa) to J16A Glan-Yr-Afon Road (Dwygyfylchi).
North Wales Police have reported that the incident is an electrical fire.
Queues stretched back to Llandudno Juction and Glan Conwy Westbound and Penmaenmawr eastbound. The Sychnant Pass road also became gridlocked due to drivers trying to avoid the road closure
Police were forced to urge drivers to observe the red 'X' on the gantry signs and not to try and travel through.
They also warned drivers not to u-turn if they are caught in the gridlock or to reverse up slip roads against the flow of traffic.
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