For Megiddo’s Migdal Temple (2048) remaining in use until the 11th century B.C.E. and for the possibility of the Shechem Migdal Temple continuing until then, see Amihai Mazar, “Temples of the Middle and Late Bronze Ages and the Iron Age,” in Aharon Kempinski and Ronny Reich, eds., The Architecture of Ancient Israel (Jerusalem: Israel Exploration Society, 1992), pp. 170–171, especially notes 42–43.