Machu Picchu's gravity-fed water system and earthquake-resistant construction

Fortress/citadel1000 - 1500 AD
These Ancient Cities Shouldn’t Exist
Source: These Ancient Cities Shouldn’t Exist by Michael Button

Inca captured a natural spring and built a pump-free gravity system carrying fresh water fountain by fountain through Machu Picchu. Its stones withstood quakes on a fault.

Key facts

  • The Inca captured a natural spring hidden in the mountain and engineered a gravity-fed water system that carried fresh water fountain by fountain without pumps
  • Machu Picchu is located above a U-turn of the Urubamba River, providing access to fresh water while protecting the site from floods
  • The site sits on top of an earthquake fault line
  • The Inca construction techniques allowed the stones to withstand tectonic shifts with minimal damage
  • Earthquakes may have exposed better building stone materials that the Inca utilized

Site mentioned

📄 Machu Picchu🌍 Show on the globe

Sources

paleoseismicity.org
Linked in video description
education.nationalgeographic.org
Linked in video description
Water Fountains and Inca Channels of Machu Picchuperusites.com
The spring: the origin of the water · The main channel: 749 meters of precision · The sixteen fountains: the distribution system · The drainage ...
Tipón Engineering: Masterpiece of the Incaswatershapes.com
The Incas clearly believed that certain water sources were sacred — especially springs. Many irrigation systems were designed not only for ...
Machu Picchu Water Managementancientengrtech.wisc.edu
The ancient city of Machu Picchu uses a water source of natural springs that are located on the north slope of the mountain of Machu Picchu [4].
Machu Picchu Water System: Inca Hydraulic Engineeringmachutravelperu.com
Spring water intake: A 749-meter-long stone channel with a precise gradient ranging from 1.0% to 4.8%. · Staircase of fountains: A series of 16 ...
Machu Picchu's Water Systemomrania.com
The city's builders captured and regulated the flow of a spring through a system of conduits and fountains, adding drainage and flood-prevention ...

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