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Mexican water authority Conagua is planning to launch tenders to build a stormwater intake system from Mexico City's Río de los Remedios river, project engineer José Miguel Guevara told BNamericas.
Work will involve building two new tunnels that will connect to the Emisor Poniente and Emisor Oriente drainage tunnels, currently under construction in Mexico state. The two tunnels will be tendered separately, according to Guevara.
The first tunnel to be tendered will be the connection with the Emisor Poniente drainage system. The tender will be published within the next two months, with an estimated cost of 200mn-300mn pesos (US$17mn-25.6mn).
The intakes are part of a wider program of drainage works for the Mexico valley area, worth some 2.7bn pesos in total and funded by national development bank Banobras.
Conagua has identified four projects for completion from 2008-2012, including the Casa Colorada pumping station, the water uptake system from the Río de los Remedios river, the Caracol pumping station and various emergency works.
The water uptake system and the Caracol pumping station are the only two projects that have yet to begin. Tenders to build the Caracol pumping station were recently awarded to Cotrisa and a group formed of La Peninsular Compañía Constructora and Alcance Total.