This thesis aims to develop the Environmental Impact Study for the construction of the Bridge Creek Peca III and Access ( length 25 m), located in the province of Bagua, Department of Amazonas, to develop the study methodology was used evaluation or quality assessment. For this we had to define the area of influence which has a length of 150 meters around the project area and the indirect influence of the project with which the major environmental components are described. The main environmental risks are analyzed in a case matrix effect between activities that can cause further environmental damage and environmental components likely to be impacted as a result of this environmental assessment was performed on the stages of construction and operation of the bridge, obtaining as results impacts of low to moderate intensity, so it was necessary to establish an environmental Management Plan...