Hezekiah's Tunnel

Wailing Wall Gihon Spring

Hezekiah's Tunnel

Hezekiah's Tunnel

Hezekiah's Tunnel, City of David

The entrance to Hezekiah's Tunnel is beneath the City of David, which is located just south of the southeast corner of the Temple Mount. Al Aqsa Mosque is directly north of the entrance to Hezekiah's Tunnel, which is about 1,000 feet southeast of Old Jerusalem's Dung Gate. Above is the descent into Hezekiah's Tunnel.

What is Hezekiah's Tunnel?

Hezekiah's Tunnel is the 8th century BC tunnel that King Hezekiah of Judah ordered dug in order to both secure Jerusalem's water supply and deny water to the Assyrian king Sennacherib's army that was about to lay siege to Jerusalem. Until Hezekiah's Tunnel was completed, water from the Gihon Spring, Jerusalem's fresh water source, flowed into the Kidron Valley that runs just each of Jerusalem. Hezekiah's Tunnel diverted Gihon Spring's water to the Pool of Siloam inside Jerusalem (the ancient City of David was situated downhill from the later and present "Old Jerusalem") so that it supplies its residents with water while letting none of it flow to the besieging invaders outside the city.*

Hezekiah's Tunnel is 1,749 feet (533 meters) long, and a mere 50 centimeter difference in altitude allows the water to flow (below) from the Gihon Spring 'down' to the Pool of Siloam.

Hezekiah's Tunnel

Hezekiah's Tunnel was excavated using pickaxes, mostly from the Gihon Spring side but also from the side of the Pool of Siloam. The place where the two groups of excavators met, about 19 feet from the Pool of Siloam, is marked by the Siloah Inscription (below) that commemorates their engineering feat.**

Hezekiah's Tunnel Shiloah Inscription
Hezekiah's Tunnel Shiloah Inscription

The original Siloah Inscription was discovered during the Ottoman era in 1880, chiseled out and is on display today at the Istanbul Archaeology Museum in Turkey. The inscription above is a copy of the original and was inserted in the original location.

Travel Tip
Hezekiah's Tunnel can be visited by those who are physically fit and prepared. In the initial stretch of Hezekiah's Tunnel, the water is cold, up to 3 feet deep, and the current is strong. After the initial stretch, the current slows, the water is calf-deep and the temperature become refreshingly cool. The tunnel is completely dark, quite long, very narrow, and the ceiling is low. Those in shape and not claustrophobic should wear bathing shorts, sturdy water shoes, and either bring a flashlight or hold tightly on to illuminated mobile phones, lest they hit both water and rock.

Hezekiah's TunnelThose who are claustrophobic, not in shape or unprepared to get wet can take the Canaanite Tunnel (right), which was excavated by the Canaanites a thousand years before Hezekiah's Tunnel to channel Gihon Spring's water through several openings to their crop fields in the Kidron Valley. One of the Canaanite Tunnel's routes connects Gihon Spring to the Pool of Siloam. This "dry" tunnel is somewhat steeper but also shorter, wider, has lights and more head room but no water, so it is less physically challenging.

For more Biblical archaeology, see Golgotha, Jesus' Tomb and Capernaum, as well as Gihon Spring.

* After these deeds of faithfulness, Sennacherib king of Assyria came and entered Judah; he encamped against the fortified cities, thinking to win them over to himself. And when Hezekiah saw that Sennacherib had come, and that his purpose was to make war against Jerusalem, he consulted with his leaders and commanders to stop the water from the springs which were outside the city; and they helped him. Thus many people gathered together who stopped all the springs and the brook that ran through the land, saying, “Why should the kings of Assyria come and find much water?” And he strengthened himself, built up all the wall that was broken, raised it up to the towers, and built another wall outside; also he repaired the Millo in the City of David, and made weapons and shields in abundance. Then he set military captains over the people, gathered them together to him in the open square of the city gate, and gave them encouragement, saying, “Be strong and courageous; do not be afraid nor dismayed before the king of Assyria, nor before all the multitude that is with him; for there are more with us than with him. With him is an arm of flesh; but with us is the Lord our God, to help us and to fight our battles.” And the people were strengthened by the words of Hezekiah king of Judah. (2 Chronicles 32:1-8)

* Now the rest of the acts of Hezekiah - all his might, and how he made a pool and a tunnel and brought water into the city - are they not written in the book of the chronicles of the kings of Judah? (2 Kings 20:20)

** English translation of the Shiloah Inscription: "(Behold) the excavation. Now this is the history of the breaking through. While the workmen were still lifting up the pickaxe, each toward his neighbor, and while three cubits yet remained to (cut through, each heard) the voice of the other calling to his neighbor, for there was an excess in the rock on the right... And on the day of the breaking through, the excavators struck, each to meet the other, pickaxe against pickaxe; and there flowed the water from the spring to the pool over (a space of) one thousand and two hundred cubits. And ... of a cubit was the height of the rock above the heads of the excavators."

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