Altamirano collector, with concrete reinforced pipe of 244 cm nominal diameter and 290 cm external diameter in a longitude of 47.00 mts., like demonstration work for the Water State Commission and Reparation in Mexico State, Chalco Valley of Chalco, Edo.de Mex., for the túneleo method and push hidromecánico, system Akkerman, and light construction with the help of profile AZ machiembrado, in the month of May of 1994.