The Q’eswachaka bridge is the last known surviving example of an Inca-era handwoven grass bridge. Rebuilt annually over a span of several days in early June, this bridge crosses the Apurímac River canyon in the province of Canas, near Cusco, at an altitude of approximately 3,700 meters (12,140 feet). The tradition is a collective effort of four local communities: Huinchiri, Chaupibanda, Choccayhua, and Ccollana Quehue. This ancestral practice is recognized by UNESCO as an element of Intangible Cultural Heritage of Humanity.
Local tradition holds that the Apurímac River possesses a feminine spirit that is easily angered. In accordance with this belief, only men are permitted to work down in the canyon during the reconstruction. Women perform their tasks on the canyon rim and are only allowed to descend and cross the bridge after it has been completed.
Historically, the bridge was rebuilt in January, a month characterized by heavy rainfall. The tradition was moved to the dry season month of June after a young man was killed by a lightning strike during a January storm, highlighting the dangers of the original schedule.
The construction of the Q’eswachaka bridge is a multi-step process involving specific materials and a strict division of labor.
Phase 1: Material Gathering and Rope Production The primary construction material is a type of high-altitude bunchgrass known as qoya ichu. Community members gather the grass using traditional scythes. To make the grass pliable for weaving, it is soaked in water and pounded with stones.
Women, working on the canyon rim, are responsible for twisting this prepared grass into ropes. The process requires significant skill to maintain consistent tightness and diameter. Two types of rope are created:
Phase 2: Bridge Assembly and Installation Once the ropes are prepared, the men begin work in the canyon.
Phase 3: Final Flooring While the main structure is being woven, another group of men prepares the bridge’s final surface. They cut sticks to a uniform length and tie them together with strips of rawhide, which they also cut by hand. This creates large rolls of stick matting. Once the bridge’s side walls are complete, these rolls are carried down into the canyon and rolled out across the braided floor cables, providing a stable surface for walking. The process typically concludes near dusk.
The event is also a display of distinct local culture. The women of the participating communities wear traditional clothing, including notable skirts made from homespun alpaca wool with unique crocheted trim. The men wear pants and jackets made from the same rough, homespun fabric. The reconstruction serves not only as a feat of engineering but also as a vital annual social event that reinforces community bonds and perpetuates ancestral knowledge.