The memorial (left) was erected at Purton in 2010 to remember the Severn Bridge Disaster of October 25, 1960. The Harker Fuel tankers WASTDALE H and ARKENDALE H became lost in dense fog whilst trying to enter Sharpness Dock. The vessels drifted up river colliding with the Severn Railway Bridge causing two spans to collapse onto them which resulted in the vessels exploding. Five crew were lost and three were saved. The vessels still lie in the mud side by side, upstream from the site of the bridge, where they came to rest (right).