Excavations at En Feshka were initially conducted in the 1950s by Roland de Vaux - who also excavated nearby Qumran. Then, in 2001, Hirschfeld excavated the site. An Iron Age fortress exists as well as a complex which Hirschfeld (2004b:44) estimated was constructed in the reign of Herod (37-34 BCE) and was in use until its destruction around 130 CE, a period of approximately 150-160 years.

Hirschfeld (2004b) reported on his excavations at En Feshka where he did not encounter archaeoseismic evidence. Hirschfeld (2004b:44) surmised that construction of the complex north of the spring began in the reign of Herod (37-34 BCE), and it was in use until its destruction around 130 CE, a period of approximately 150-160 years. Hirschfeld (2004b:42) reports that the main building at Ein Feshka yielded evidence for its destruction in a fierce fire and the site was destroyed in the second half of the first century, almost certainly during the Second Revolt. The second revolt (aka the Bar Kokhba revolt) lasted from 132-136 CE. Hirschfeld (2004b:55) discovered an iron arrowhead embedded in the southern wall of the northern wing (W7), close to the place where signs of fire were discerned which he presumed was associated with the destruction of the building during the Second Revolt [aka the Bar Kokhba revolt].

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