Incas in Peru is known for its historic civilization. In addition to Machu Picchu, there Keshwa Chaca bridge made of knitted grass. Interestingly, the bridge is always updated annually by way of re-knitted. From the first, the famous Incan society with an advanced civilization and extraordinary. One unique is the bridge Q’eswachaka called Keshwa Chaca in Peru. With just rely on natural and traditional skills, Incan society can make Keshwa Chaca bridge which crosses the River Apurimac. More cool again, the bridge made with woven grass. It is just unbelievable.
Every person assigned to knit strand-strand rope made of grass. Once finished, knit the grass will be bound to one another to become thicker. That tradition was continued for 500 years until now. But although made of grass, the bridge is so solid and not inferior to steel bridges. It is estimated by experts, the bridge can carry up to 56 people at once.
Keshwa Chaca near Huinchiri is the last bridge. Every year in June, the Incan people always hold a ritual to renew the ancient bridge. At least four people from a nearby village hand in hand to make it. If you are planning for a vacation to Peru, could possibly come in June to see the unique ritual. If not, you can still see the legendary Keshwa Chaca.
The Incas used natural fibers found within the local vegetation to build bridges. These fibers were woven together creating a strong enough rope and were reinforced with wood creating a cable floor. Each side was then attached to a pair of stone anchors on each side of the canyon with massive cables of woven grass linking these two pylons together. Adding to this construction, two additional cables acted as guardrails. The cables which supported the foot-path were reinforced with plaited branches. This multi-structure system made these bridges strong enough to even carry the Spaniards while riding horses after they arrived. The design naturally sags in the middle.
Part of the bridge’s strength and reliability came from the fact that each cable was replaced every year by local villagers as part of their mit’a public service or obligation. In some instances, these local peasants had the sole task of maintaining and repairing these bridges so that the Inca highways or road systems could continue to function. The repair of these bridges was dangerous, to the degree that those performing repairs often met death. An Inca author praised Spanish masonry bridges being built, as this made the need to repair the rope bridges moot.