While heading north on the A9 one morning north of Helmsdale I overtook a slow moving lorry with no markings with a van travelling close behind so I stopped a the Berridale Braes to take a photo. As it rounded the hairpin bend it had to stop for a car coming down the hill. When the car was clear driver started to move again and the lorry was loosing traction where the shellgrip was worn away on the road which seemed to cause a panic with the men in following van. The guys jumped out then running back for their yellow jackets, one rushed up the road to stop any more traffic coming down the hill while the driver got out of the lorry to check out the situation. After reversing back down the hill a few meters and three attempts the lorry got grip by going right over on the opposite side of the road and made it's way up the hill. I managed to get a photo of the detail on the back of the trailer which was going to a Colin Macdonald at UKAEA Dounreay and the weight 50 tones. With the lorry and trailer weight included would be near 80 tones I wonder what was in the trailer!