This paper discusses the evaluation of the environmental impacts within the Industrial Complex of Acu Port, (Sao Joao da Barra - RJ), with emphasis on the impact resulting from the process of urban density caused by the centralized power inherent in large projects like this. Thus, the present study measures and evaluates the impacts caused by the process of high density of area of direct influence –AID– of the enterprise. The methodology used is named Ecological Footprint, a tool to assess the impact of continuous population growth and its implications on the environmental resistance capacity of the area of investigation.