The project of improvement and expansion of the airport of Rioja "Juan Simons Vela", developed in 1990 by the Ministry of transport and communications through the Directorate General of air transportation, indicated as ele ~ ento noun from the development of the project the study of drainage of the area committed to that end. " The year 1994 in the month of April, the Provincial Municipality of Rioja, signed an agreement of - cooperation with the National University of engineering through the UNITEC C &T; with the object specific to these studies by part·e at the Faculty of Civil Engineering, through the participation of the Department of hydraulics and hydrology, and the who Center for earthquake research and disaster mitigation (CISMID). The present study has been formulated to final level and has allowed to obtain the technical file which will be used next to the update of the above ...