T1 Ash - Fell. T1 is a small self-sown Ash tree growing beside the small retaining wall to the west of the offices. There is a small crack developing beneath this tree and no other cracks were seen along the span of the wall. It is likely that the Ash tree has caused this cracking due to soil displacement and the crack will enlarge as the tree grows. To reduce any further damage occurring to the wall, the tree should be felled.