Sparrow's 60-ton mobile crane was used to restore the stones that had fallen in previous centuries.
Sparrow's 60-ton mobile crane was involved in the restoration of Stonehenge in Wiltshire and the photos below show the before and after result of the work done between 1901 to 1964. In 1901 The Great Trilithon was straightened and set in concrete. In 1919/1920 six stones including the lintels of some of the Outer Circle of Sarsen stones were re-positioned. Sparrow was then involved in the 1950's onwards. One of the Sarsen stones that fell in 1900 after a fierce storm on 31 December 1900 but had not been re-erected (along with its broken lintel) also in 1958/59 one of the inner Horse Shoe Trilithons (3 stones) was re-erected , and in 1964 a further 4 stones were repositioned and set in concrete after a Sarsen stone had fallen over in March 1963.
In order to re-erect the vertical Sarsen blocks from the fallen horse shoe Trilithons the archaeologists first had to re-dig the pits for the vertical blocks to stand in, but because the locations of the original pits lay underneath the fallen Sarsen blocks, the archaeologists had to temporarily move the fallen blocks out of the way so they could re-dig the pits in their original locations.
The largest group of stones fell 1620AD. Those next to the great Trilithon on the north-west fell on 3rd January 1797AD. For a more in depth and very informative site on Stonehenge go to https://ashtronort.wordpress.com/2014/10/04/monolithic-madness-stonehenge-built-in-1954/
