Ancient Dam Discovered in Jerusalem
In an exciting find, archaeologists have unearthed an ancient dam in the City of David, not far from the Siloam pool in Jerusalem—a site often associated with the biblical story of Jesus healing a blind man.
This discovery was announced by authorities in a release dated August 30, noting that the dam was located during excavations near the Siloam pool within Jerusalem Wall National Park. The pool itself, rediscovered in 2004, has historical significance, as it served as a basin fed by the Gihon Spring. This locale features in the Gospel of John, where Jesus is said to have healed a blind man.
According to researchers, this dam dates back to the 9th century BC—around 2,800 years ago. There’s speculation that it might have been constructed during the reigns of either King Joash or King Amaziah.
The dam’s discovery is part of a collaborative project between the Israeli Antiquities Authority (IAA) and the Weizmann Institute of Science. Research findings were published in the Proceedings of the National Academy of Sciences on August 25.
Interestingly, this dam is described as the largest ever found in Israel and also the oldest in Jerusalem. It measures approximately 69 feet long, 39 feet high, and 26 feet wide. Initial photos from the site reveal archaeologists working on this impressive stone structure.
Researchers successfully narrowed down the dam’s age within a ten-year timeframe, thanks to twigs and branches found embedded in its mortar—indicating it was built between 805 and 795 BC.
One archaeologist, David, mentioned that the dam could represent a “creative solution to the climate crisis” of its time, addressing the challenges posed by droughts and flash floods that were common in ancient Jerusalem. It was designed to collect water not only from the Gihon Spring but also to channel floodwaters from the surrounding valleys.
Data analyzed by the research team suggested a pattern of low rainfall interspersed with short, intense storms, which often caused flooding. So, developing such a large-scale water management system seems to have been a direct response to environmental challenges.
Eli Escusido, director of the IAA, described the dam as one of Jerusalem’s most significant artifacts from the First Temple period. He commented on the ongoing discoveries in Jerusalem, asserting that the city continues to reveal its ancient history in remarkable ways.
As Jerusalem is deeply woven into biblical history, findings like this dam add layers to our understanding of the ancient world. Just this year, for instance, remnants of an ancient garden linked to Christianity were uncovered.
In addition, a recently discovered coin minted just before the destruction of the Second Temple—an event cited in the Gospels—further emphasizes the ongoing archaeological significance of this historical city.
