The surviving section of the causeway on Wheeldale Moor was reported by 1903 to be overgrown with heather and up to a foot of soil. After being cleared of debris and overgrowth during excavations from 1910, it was by 1920 "stripped ... of the growth of turf and heather and ... clear for miles". The Office of Works then employed a labourer to keep the section of the causeway on Wheeldale Moor clear of vegetation, an arrangement that appears to have survived after that organisation's change to the Ministry of Works in 1943 and later absorption into the Department for the Environment in 1970. Johnston states that the site was still maintained in 1979, but by 1994 the visible section of the causeway had been left to be covered by vegetation once more.