Hollow baked brick buttresses were later built up against the original "granary" structure on top of a shallow mud-brick platform [400] that itself overlies the mud-brick platform of the original "granary". Below these platforms is baked brick wall [330] (seen here with the scale lying on it) of the structure preceding the "granary". The precise function of the buttresses is not known, but eventually they became filled with trash and silt as the street levels outside the building grew higher.
