East to west wall 5412 was constructed abutting both 5387 to the west and 5413 to the east dividing the eastern corridor. Furthermore, the wall seems to be associated with the "renovation" of the swer (5331, 5332 and 5361) as it seems to correspond to the level of 5412 and to be constructed contemporaneously (it seems to be abutting both 5331 and 5332). The doorway prevented access to the gutter in this corridor.