In December 2007, a trial excavation was conducted at Khirbat ‘Adassa in the Bet Hanina neighborhood of Jerusalem (Permit No. A-5321; map 222166/637202), prior to construction of Highway 20. The excavation, undertaken on behalf of the Israel Antiquities Authority and financed by the Moriah Company, was directed by I. Zilberbod, with the assistance of Y. Ohayon (administration), T. Sagiv (field photography), M. Kunin (surveying) and T. Kornfeld (drafting).
Two parallel walls (W1—length 1.9 m, width 0.65 m, height c. 1 m; W2—length 1.5 m, width 1 m, height c. 1 m; Figs. 1–3) were partially exposed; both were built of small- and medium-sized fieldstones and founded on the bedrock. The walls were severed in the south by a modern channel, and their northern continuation extended beyond the limits of the excavation. A fill containing tamped layers of soil and calcareous material (L101–L103) was excavated both east and west of the walls and in between them. The fill between the walls yielded pottery sherds that date mainly to the Iron Age II; several sherds are from the Hellenistic or Persian period. No floor was identified. It seems that the walls constituted part of an ancient road.