Invitation to tender, deadline 12.11.2013, for supervision during the construction of the Canal General drainage tunnel, 8 km-long and 5 m-diameter, helping to reduce the risk of flooding in Chalco Valley. Contact Conagua, att.n Paulo Cesar Martinez Gutierrez e-mail paulo.martinez@conagua.gob.mx. Visit
https://compranet.funcionpublica.gob.mx/esop/toolkit/opportunity/opportunityDetail.do?opportunityId=320180&oppList=CURRENT.
Ref. n. CNA-CGPEAS-FIDE-SER-123/2013-LPN. 45/13.
