During February and June 2007, two salvage excavations were conducted in Nes Ziyyona (Permit No. A-5031*; map ref. NIG 18002–9/64848–58; OIG 13002–9/14848–58), prior to construction. The excavations, undertaken on behalf of the Israel Antiquities Authority and underwritten by the Shikun Dayyarim Company Ltd., were directed by D. Golan, with the assistance of S. Ya‘aqov-Jam and E. Bahar (administration), A. Hajian (surveying and drafting), T. Sagiv (field photography), R. Vinitzky (metallurgical laboratory),M. Shuiskaya (pottery drawing), R. Kool (numismatics) and also M. Avissar and E. Ayalon.
The foundation wall of a main water channel (W148; length c. 20 m, width 0.6–0.8 m; Fig. 2) was exposed in the middle of the excavation area. Wall 148 was built of five rows of small kurkar fieldstones, aligned northeast-southwest and preserved two courses high. It was fragmented and another section of it was detected in the southwestern part of the excavation area (W113, L152). Collapse of a plastered channel was discovered near W148. A wall (W118; length 1.13 m), oriented east–west and preserved two courses high, was connected to W148 at a lower level. It seems that a channel was built on top of
W118. A water channel (L147; length 2.5 m, width 0.5 m; Fig. 3) abutted W118 perpendicularly from the south. It consisted of a foundation of small fieldstones atop which was a channel whose cross-section was square (width of the channel 0.18 m). It can be assumed that the channel was plastered in the past, similar to other channels revealed in the excavation. It appears that the water flowed from the main channel (W148) to Channel W118 and then, to Channel L147. Parallel to and east of the main channel was another channel (L143; length 6 m, width 0.6 m; Fig. 4), which was built of a foundation wall of small fieldstones. Above it was a plastered channel whose cross-section was rectangular (width 0.25 m). This conduit was probably also connected to the main channel. At the southern end of the excavation, a northeast-southwest channel, plastered on the inside and outside, was exposed (L141; length 3.4 m, width 1.1 m, width of channel 0.18 m). It seems that Channel 141 was intentionally blocked with stones and plaster, possibly to raise it or to increase its slope. East of Channel 141 and at a lower level, was a layer of small stones (L133; length 1.32 m, width 0.71 m), whose function is unclear. At the northern end of the excavation the poorly preserved remains of a water channel (L128) was exposed. While excavating the channels, a few potsherds that dated to the Early Islamic period were discovered, including mostly saqiye vessels (Fig. 5:1–4) and several jars (Fig. 5:5, 6), as well as a bronze fals, dated to the Early Islamic period (seventh–eighth centuries CE). It seems that the channels exposed in the excavation were part of an Early Islamic irrigation system that was used in farming. The channels were built on a slope that descended to the southwest. Based on the ceramic finds, it seems that a saqiye well was located nearby.
South of Channel 143, remains of a road that was built of tamped soil and kurkar (L112) and was flanked on either side by two kurkar-built curbs (W111, W112), were discovered. Fragments of Marseilles roof tiles were found in the excavation of the road and therefore it was dated to the Ottoman period. A few fragments of Gaza ware from the Ottoman period were collected along the surface.