This ashlar wall is made of three red tufo blocks, though the central block is highly degraded and may have been destroyed in the later creation of the concrete wall 5416. It clearly corresponds with the construction of the paved area 5436 and the walls 5437 and 5417 and it is in relation with the use of the ramp and the similar ashlar walls on the western side of the ramp.
Pavement 5436 and EW wall 5459