This work Thesis for the Professional Title of Civil Engineer, has been developed with the aim of carrying out a technical-scientific contribution to help solve a problem of trafficability of a road, which when run will allow for a local road that it will contribute to the socioeconomic development of the beneficiary population. The research is applied type and was carried out by the Faculty of Civil Engineering, National University of San Martin, developing the project in Calzada District, Province of Moyobamba in the San Martin region. This work has been developed using field theories and rules of topography, soil mechanics, environmental impact, hydrology, road drainage, concrete and other USMBHA, and have allowed have the defmitivo study of the local road Calzada-Sector Potrerillo , Section Km 0 + 000 + 920 Km2. The results show clearly that it is possible to achieve, from the correc...