This document seeks to publicize the work carried out by the intern in the position of Engineering Assistant in La Mayordía Municipal de Cota in his unit of Secretary of Infrastructure and Public Works, describing the most outstanding activities elaborated in the field and in the administrative part of that entity. Taking into account that some of the administrative activities were developed by virtual means in teleworking method, due to issues of a pandemic that affects the population worldwide, face-to-face activities were temporarily suspended. The following report contains in detail the overall development of the internship, specifying the activities carried out by the intern, where he was in charge of accompanying the engineers of that unit by supporting them in the work and/or activities they requested; in turn make visits to the different works that the Mayor has at its disposal and other activities that will be described in this document.