• replacement, supply and installation of the 4 seals of seal (frontal) and maintenance to the 4 floodgates of regulation (posterior), all of the type sliding, located in the shunts of the Supercircuit and Acuaférico, in the Louver 3 of the tunnel Analco-San José, as follows:
• The 2 frontal floodgates of the supercircuit and the 2 frontal floodgates of the Acuaférico were removed and replaced by new stainless steel floodgates and included their operating mechanisms.
• At the 2 rear floodgates of the supercircuit and the 2 rear floodgates of the Acuaférico were given corrective maintenance in order to rehabilitate their operation, including the restoration of the frames and guides where the gate runs. In addition, a new operation mechanism was included by elaborating the adjustment of the anterior stem for the coupling with the new mechanism, which has the same technical specifications as the new stainless steel floodgates.
• To be these remote operated, there were incorporated signs of opening, closing and positioning of the floodgates to an existing Control panel in the plant.
