TULPETLAC YEAR 1998: Construction of 700.00 mts. of pluvial colector “Nuevo Laredo”, in the location of Tulpetlac, borough of Ecatepec, Edo. de México Whit pipes of reinforced concrete of 2.13 mts. of diameter by sinked method of pipes hidromechanic shove and digge with mecanic shield of open front of lattire and digger, and construction of luminary to profile base AZ tongue and groove to public works direction of borough of Ecatepec, through asociation agreement in colaboration with Contratista National Company, S.A. de C.V. Construction of 167.00 mts. pluvial Colector “Nuevo Laredo”, in the location of Tulpetlac, borough of Ecatepec , Edo. de México. Whit reinforced concrete pipes of 2.13 mts. of diameter fon sinked melhod by hidromechanic shove and digge whit mecanic shield of open front of lattire and construction of tongue and goove to profile base AZ to public works direction of borough of Ecatepec, by sub agreement whith Contratistas Unidos Mexicanos, S.A. de C.V.

sewerage, shields, pipe, tunnels, microtunnels, sheet piling, tube, driving, openings, recondition, drainage, thrust, cofferdams, collector, drilling, excavation