The pavement, SU 5436, would have been used as a floor surface in Room 15 next to the ramp. The tufo blocks are very degraded on the northern and eastern limits. The tufo blocks are earlier than the concrete structures around them. They possibly paved an open air area in this earlier phase. The small square cuts may relate to later re-use during the phase of concrete walls, as do the circular cuts.
Pavement 5436 and EW wall 5459