Possible E road retaining wall section. For missing section of road paving between S road area 4010 and N road area 4027. this wall is a possible continuation of wall 4040 directly north and wall wall 4039 directly S (all are aligned and are sections of E retaining wall for road and/or W wall of structure to E with paved areas 4041, 4048, 4055). Abutted on W by road preparation 4046 and on E by a tile collapse revealed by excavation of 4031.