For those unfamiliar with the site the accompanying image of the excavations at Blick Mead in 2016 vividly illustrates how close the A303 actually is. The flyover proposed by Highways England would appear from the right and a raised section would be mounted on piles above the current level of the road surface, so through the archaeology as it appears the area of interest extends under the current route. Unsurprising then that Professor David Jacques is concerned.