Second Temple Pool of Siloam
Monumental stepped and plastered remains at Jerusalem's southern water outlet establish a large public pool used before AD 70, providing the clearest archaeological setting for the Siloam of John 9.
- Artifact date
- Late Second Temple period, first century BC–AD 70
- Discovered
- 2004
- Findspot
- Southern City of David, Jerusalem, Israel
- Current location
- Partly excavated in situ in Jerusalem
What archaeologists can actually examine
Excavations at the southern end of the City of David exposed broad stone steps descending in alternating narrow and wide flights into a large plastered basin. Pottery and coins from construction and abandonment contexts place the monumental phase in the late Second Temple period and show it went out of use around Jerusalem's destruction in AD 70. Only portions of the pool have been excavated, so its full plan and dimensions remain under investigation. Nearby excavation has traced a paved stepped street northward toward the Temple Mount. Coins beneath sections of that street indicate major work in the first century AD, probably under Pontius Pilate. The pool and street together reveal a southern arrival and movement zone within Jerusalem, although the common label 'pilgrimage road' includes interpretation about primary use. The remains are distinct from Hezekiah's Iron Age tunnel and earlier Siloam water installations beneath and around the same landscape.
A monumental pool existed before AD 70
Steps, plaster, pottery, and coins establish a substantial late Second Temple installation.
The stairs made water accessible
Alternating treads and landings accommodated changing water levels and large-scale use.
A major street led northward
Excavated paving connects the pool area with Jerusalem's Temple-facing circulation network.
Siloam contains several historical phases
Iron Age waterworks, the first-century pool, and later Christian remains must be distinguished.
Excavation is still changing the plan
Unexposed portions mean size, boundaries, and some functions remain provisional.
Follow the evidence from discovery to debate
Move through the find in a deliberate order: establish its provenance, examine the surviving object, place it in time, and then weigh the scholarly interpretation.
How the find came to light
In 2004 municipal work on a sewer near the traditional Siloam area exposed stone steps. Israel Antiquities Authority archaeologists Ronny Reich and Eli Shukron investigated and recognized part of a monumental pool previously hidden by later deposits and property. Excavation revealed more stepped terraces and plastered surfaces, but ownership, standing structures, and the need to preserve the inhabited landscape limited exposure. Work on adjacent drainage channels and the stepped street subsequently connected the pool area to a much larger urban circulation system. Renewed excavation has continued to expose parts of the pool and nearby waterworks, underscoring that Siloam is an active research area rather than a completed plan. Earlier explorers knew a smaller Byzantine pool and Hezekiah's tunnel outlet, which sometimes caused the New Testament pool to be conflated with later or earlier structures. The 2004 discovery relocated attention to the larger late Second Temple installation just south of the familiar traditional pool.
What you are looking at
The visible remains consist of broad limestone steps descending toward a plastered basin. The stair arrangement alternates broad landings with narrower treads, allowing water access as the level rose and fell. Excavated sides suggest a monumental public installation, but unexcavated areas prevent a secure complete outline and capacity. Plaster repairs and adjacent water-control features reflect continued maintenance. North of the pool, the stepped street is a separate but related structure with paving stones, curbs, drainage, and shops or installations along portions of its route. Earlier dams, channels, pools, the Gihon-to-Siloam tunnel, and the later Byzantine pool occupy the same southern landscape. Accurate presentation should label each phase instead of showing every feature as the pool Jesus visited. A section diagram would clarify the relation between the steps, waterline, dam, and later deposits.
Where it belongs in history
Coins and pottery associated with the monumental pool place its construction or enlargement in the late first century BC, with use continuing into the first century AD and abandonment at the revolt and destruction of AD 70. Recent IAA work east of the main pool identified an adjacent plastered pool dated by foundation deposits to the later first century AD, showing continuing development. The stepped street's final monumental paving is dated by coins beneath it to the early first century AD. Beneath these phases lies a much older Jerusalem water landscape; the name Siloam can therefore refer to related but nonidentical installations across many centuries.
Consensus, questions, and debate
The identification of the monumental stepped installation as the late Second Temple Pool of Siloam is widely accepted because of its location, form, and date. Questions remain about exact size, boundaries, water supply, construction sequence, and range of uses. Popular accounts often call it a vast ritual bath for pilgrims, yet a public reservoir, gathering place, and ritual-purification setting are not mutually exclusive and the excavated evidence does not reduce to one function. The northbound street is strongly associated with movement toward the Temple, but 'pilgrimage road' is a functional interpretation layered onto an archaeologically documented urban street. Current excavation may revise the plan. Scholars must also keep this pool distinct from the older Iron Age system and the smaller Byzantine pool long shown to visitors.
The biblical record beside the artifact
John 9:1-11 says Jesus sent a man born blind to wash in the Pool of Siloam. The excavated monumental basin demonstrates that a large, accessible pool existed at the appropriate location and during the late Second Temple period. Its stairs make the act of going down to water physically intelligible, while the road northward situates the pool within Jerusalem's movement network. Archaeology cannot identify the man or test the healing. Second Kings 20:20 and 2 Chronicles 32:30 describe Hezekiah's conduit and water project, and Nehemiah 3:15 names the Pool of Shelah, but those passages concern earlier waterworks or phases. They help explain the place-name's long history; they should not be used to date the monumental first-century pool directly to Hezekiah.
John 9:1–11
1And as [Jesus] passed by, he saw a man which was blind from [his] birth.
2And his disciples asked him, saying, Master, who did sin, this man, or his parents, that he was born blind?
3Jesus answered, Neither hath this man sinned, nor his parents: but that the works of God should be made manifest in him.
4I must work the works of him that sent me, while it is day: the night cometh, when no man can work.
5As long as I am in the world, I am the light of the world.
6When he had thus spoken, he spat on the ground, and made clay of the spittle, and he anointed the eyes of the blind man with the clay,
7And said unto him, Go, wash in the pool of Siloam, (which is by interpretation, Sent.) He went his way therefore, and washed, and came seeing.
8¶ The neighbours therefore, and they which before had seen him that he was blind, said, Is not this he that sat and begged?
9Some said, This is he: others [said], He is like him: [but] he said, I am [he].
10Therefore said they unto him, How were thine eyes opened?
11He answered and said, A man that is called Jesus made clay, and anointed mine eyes, and said unto me, Go to the pool of Siloam, and wash: and I went and washed, and I received sight.
A responsible historical conclusion
Siloam gives John 9 an intelligible urban setting: a real first-century basin with steps, changing water levels, crowds, and a route back into the city. Its multiple phases also let a page teach archaeological reasoning. Visitors can see how coins, pottery, plaster, and street stratigraphy identify the correct period rather than accepting every nearby water feature as the same biblical pool. A phased map can connect the pool, tunnel outlet, stepped street, Temple route, and later Christian pool without confusing their dates.
Included in these guides
See how this evidence file fits within a larger historical question.
Authoritative sources
Institutional catalogs, excavation reports, and academic publications let you examine the evidence beyond this summary.
The City of David, Siloam Road: A Plastered Pool Adjacent to the Dam
Israel Antiquities Authority, AtiqotPeer-reviewed excavation report on a first-century plastered pool, foundation deposits, and the Siloam dam and road.
Jerusalem, City of David, the Stepped Street
Israel Antiquities AuthorityOfficial report on the street's construction, chronology, drainage, and later reuse.
Jerusalem, City of David
Israel Antiquities AuthorityOfficial excavation report locating the Early Roman stepped street between the Temple Mount and Siloam Pool.
The Coins from the City of David, Siloam Road
Israel Antiquities Authority, AtiqotSpecialist publication of the coin assemblage used in reconstructing the site's chronology.
The broad stepped remains of the late Second Temple Pool of Siloam exposed south of Jerusalem's City of David. · Rhododendrites · CC BY-SA 4.0
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