During April–May 2012, a salvage excavation was conducted at Khirbat ‘Addasa (Permit No. A-6492; map ref. 22073/63896), prior to construction. The excavation, undertaken on behalf of the Israel Antiquities Authority and underwritten by Zoheir Al-Talkhami, was directed by Z. ‘Adawi, with the assistance of N. Nehama (administration), A. Hajian (surveying and drafting), A. Peretz (field photography), S. Al-‘Amlah (metal detection), B. Touri, K. Masarwa and A. Abbasi (antiquities inspection), E. Eisenberg (pottery and metallic items), I. Lidski-Resnikov (pottery drawing), Y. Kupershmidt (metallurgical laboratory) and C. Amit (studio photography).
Two parallel retaining walls of farming terraces (W10, W11) were revealed. Wall 10 (exposed length 8 m; Fig. 3), oriented east–west and preserved five–six courses high, was built of one row of small and medium fieldstones founded on brown soil fill (thickness 0.4 m) deposited on the bedrock; some of its stones had fallen to the north. The continuation of the wall to the east and west could be seen on the surface for a distance of c. 18 m beyond the excavation limits. Wall 10 retained a farming terrace that extended to its north. Retaining Wall 11 (Fig. 5) was discovered c. 2 m north of W10. Wall 11, generally aligned east–west and preserved one or two courses high, was built of one row of small and medium fieldstones founded directly on the bedrock. Medium-sized fieldstones that had probably collapsed from the wall were discovered to its north. Brown soil fill overlying the bedrock was discovered south of W10, above W11, as well as north and south of W11 (L154—thickness 0.7 n; L155—thickness 0.3–0.4 m; L156—thickness 0.35 m); the soil fill exposed north of W10 was mixed with fieldstones. Fill 155 south of W10 contained potsherds that mainly dated to the Middle Bronze Age II, including a cooking pot (Fig. 4:2) and jars (Fig. 4:5, 6), as well as a fragment of a metal tool (a chisel head? Fig. 6:1) and three bronze rifle bullets (diam. 1.4 cm), which probably date to the Ottoman period and were discovered next to the foundation of W10. The fill discovered on both sides of W11 (Loci 154 and 156) contained potsherds from Middle Bronze Age II, including a bowl (Fig. 4:1), jars (Fig. 4:3, 4) and a jug (Fig. 4:7), as well as a fragment of a metal tool (a chisel head? Fig. 6:2) and a metal awl (Fig. 6:3). A jar fragment dating to Iron Age I (Fig. 4:8) was discovered in Fill 154.
It seems that the ancient potsherds were swept to the site from a higher location. The rifle bullets from the Ottoman period might indicate that it was built or renovated during this period.
The terrace walls exposed at the site were part of a developed agricultural complex that had been established on the slopes of the hill, and was connected to the MB II settlement on the hilltop at Khirbat ‘Addasa.