Nazca aqueducts

The aqueducts of Nazca carry water from the snow-capped mountains and from the seepage of the rivers, Aija, Tierra Blancas and Nazca through underground sections (galleries socavón) and through uncovered sections (gallery ditch). In the covered sections, helical section chimneys were built every certain section (50, 100 and 120 m), in order to carry out the maintenance of the ditches and load the atmospheric pressure into the aqueduct and maintain the uniform flow regime, the same as It does not cause erosion or sedimentation in the channel. The chimneys have an average length of approximately 50 meters, where they can be entered relatively easily to carry out maintenance. The walls of these chimneys are lined with pebble stones, placed apparently without binder and maintain their stability despite natural phenomena. Due to the scarcity of water that this causes in the region, the inhabitants of the ancient Nasca culture managed to use water from the underground water table, through technological innovation that gave rise to underground aqueducts.