Structure, evolutionary context and chronological data of the Monforte de Moyuela Roman dam (Ebro Basin, NE of Spain)

The Monforte de Moyuela dam, also known as Ermita la Virgen del Pilar is a Roman reservoir built on tributary of the Aguasvivas River (Ebro basin, Spain). A multidisciplinary study has been carried out to investigate this kind water infrastructure. It fifth-highest dam (16.8 m) in Iberian Peninsula and seventh Empire. initial was ca. 100 B.C.–10 A.D., probably period Augustus, like other nearby dams. quickly filled due extreme generalized anthropic degradation basin during period. During mid-2nd century, wall increased height its final silting dated early 7th century. opus caementicium mortars shows constructive differences between subsequent phases wall. These provided charcoal for dating two phases. In addition, stratigraphic edaphological reservoir's sedimentary fill, together with 14C ages, allowed us reconstruct main activity cycles siltation dam. Subsequently, broke phases, which created stepped sections located current valley bottom. data obtained creation geomorphological map an evolutionary model showing differentiated stages, from construction opening. Although some remains canals downstream have identified, use remained active several centuries, still needs be investigated greater detail.