🇵🇪 Peru · Hydraulic works
Puquios de la Achirana
Late Horizon Inca Imperial 1450 CE · Inca (Quechua) imperial engineers
12 Inca puquios gallery aqueducts (17 km, 1450 CE) of the Achirana canal, Inca ashlar aqueduct feeding Ica Valley.
🇵🇪 Peru · Hydraulic works
Cumbemayo Aqueduct, Cajamarca
Andean Formative (Early Horizon) · Cajamarca (Cumbemayo culture) pre-Chavín
Andean 9-km zigzag rock-cut canal 1500 BCE with zigzag flow-slowing and Frailones hoodoos.
🇵🇪 Peru · Hydraulic works
Qhapaq Ñan – Andean Road System
Inca Empire with antecedents Wari/Tiwanaku (~1000–1532 CE; Inca 1438–1532 CE) · Inca (with pre-Inca antecedents)
The backbone of Tawantinsuyu, Qhapaq Ñan runs 6,000 km along the Andean crest from Colombia to Chile, with east–west transversal roads totalling over 23,000 km.
🇵🇪 Peru · Hydraulic works
Nazca Puquios Aqueducts
Nasca culture, Early Intermediate (~500 BCE – 600 CE; puquios ~300–600 CE) · Nasca (Nazca)
Unique Andean hydraulic analog to Persian qanats: 36 puquios, each a stone-lined infiltration gallery tapping sub-river gravel aquifers, ventilated by corkscrew stone spirals descending to the…
🇵🇪 Peru · Hydraulic works
Andenes of the Colca Canyon
Middle Horizon to Inca ~800–1532 CE · Collagua and Cabana then Inca
Collagua 1,000 km of canyon-edge andenería integrating amunas and qochas still irrigated.