this SU was defined in 2011, but renamed and redefined in 2012 by Claudia Melisch. With the further excavation of the SUs in Area F on the W side of the wall 1058, this wall was divided into multiple SUs which represent different phases of construction. In this case, 5146
Cut 1407 represents the trench fug for the construction of retaining wall 1058. It post-dates road 1400 as indicated by its disruption of the western-most paving blocks.