Application of RIAM to the environmental impact assessment of hydroelectric installations

This paper evaluates an Environmental Impact Assessment (EIA) using the Rapid Impact Assessment Matrix (RIAM). It analyses and presents in a structured, friendly and transparent environment the numerous parameters and alternatives of an EIA. It considers all 4 components: physical / chemical, biological / ecological, social / cultural, economic / operational. These are then evaluated using universal criteria common to all impact consideration. Figures and tables made comparisons much easier. This Matrix was applied to the EIA of the future Vale de Madeira Hydroelectric Installation that will be situated on the River Côa of the Douro River Basin in the Municipalities of Pinhel and Figueira de Castelo Rodrigo, North of Portugal. It will be shown that such a project will be positive economically but negative otherwise (as related to the other three components evaluated in RIAM)