Downstream Level: The work aims at regulating flows in the upstream level, located at around 12.6 km. The gravity-type dam, in compacted concrete, has a maximum height of 45 m, with a climbable area that corresponds to the central part where the surface spillway with four shutters is located, having an energy dissipation basin per roller “roller”. buckett”. The bottom outlet is installed on the right side wall of the spillway. The plant, located on the right bank, has a discharge and assembly floor, underground, and two circular wells, with an interior diameter of 22 m, spaced 40 m apart, each housing a reversible group with a maximum power of 19.1 m. MW. Each of the hydraulic circuits is made up of a water intake consisting of a nozzle, a short gallery with a rectangular section and a well for maneuvering the hydromechanical equipment, a gallery under load with an inclination of 10% and/or 18%, a short section in a horizontal gallery with an armored part up to the spiral of the group and by a restitution consisting of a short section in a tunnel, a maneuvering pit for hydromechanical equipment and a nozzle.
Construction of a new bridge over the river Sabor is intended to bridge the valley of the river Sabor at about 40 m in height in relation to its smaller bed, north of the current Ponte da Portela, which will be submerged with the rise of the future reservoir Flavor dam. The work of art develops, between axes of support in the encounters, between kms 0+617.00 and 0+885.00 of the restoration of the E.N. 102 of the AHBS Downstream Step.