Limited section of a small stone wall or linear feature preserved above previous gravel pavement, which may have served as some sort of median for the middle of the road. It is almost certain that it was partially cut by (and thus predating) cut 6060, rather than constituting part of its fill.
Compact brown layer in a stone linear feature
Compact surface of brown silt east of wall 6033 and cut by 6062
photo from south
photo from east
photo from west