Clearing, excavation and embankment works. Construction of an open-air reservoir for 100,000 m³, including excavation, liners and geomembranes. Drainage network including ditches, drains and culverts. Electrical installations, installation of hydromechanical and electromechanical equipment. Construction of pumping station including earthworks, reinforced concrete and equipment. Refurbishment of the Nó do Peso flow control structure, construction of a channel to divert the watercourse, construction of a connection chamber and screen-cleaner structure, construction of the access road to the reservoir, and asphalt paving.