A decades-old tradition that drivers from Merseyside and beyond possibly mistook for a noisy tunnel is in fact something else entirely.
Most holidaymakers from the region heading to the North Wales coastline will travel down the A55 - North Wales' busiest road. Originally to link Chester and Bangor alongside the railway work to upgrade the road started in the 1930s, the expressway now carries an increasing volume of traffic each year.
But decades ago, two workers reportedly lost their lives in the process. But their memory has always endured, North Wales Live reports.
