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Project

construction of the MUJER SOLTECA (Margarita Maza) Dam for the supply of drinking water, in the state of Oaxaca.

Sector: Water and Environment


Last Revision

May 08, 2026
Macroproject:
Infrastructure Projects of the National Water Plan
Short Name of the Project:
0993 Mujer Solteca (Margarita Maza) Dam
Type of Investment:
Greenfield
Subsector:
Water Supply
Asset (s):
 Dam 1,000 litres per second (l/s) 
Contract Currency:
Mexican Pesos MXN
Estimated Investment MXN:

15,944,820,000

Estimated Investment USD:

826,156,476

Exchange rate (USD/MXN) used by the Ministry of Finance for the economic plan 2026: $ 19.3
Contract Scope:
  Construction
DISPLAY ALL

DESCRIPTION
Construction of a dam and infrastructure with a capacity of 1 m3/s, comprising a 100.9 km aqueduct, a water treatment plant, and pumping stations.
Components:
-DamIntake works,
-Aqueduct,
-Water treatment plant (WTP),
-Interconnection lines and
-Distribution networks

LEGAL AND FINANCIAL STRUCTURE
Type of Project
  Public
Type of Contract
  Public Works
Selection Process
Open Domestic Bidding

STATUS
Stage
  Bidding
Substage
  Proposal Assessment
RELEVANT DATES
Request for proposals/Announcement April 09, 2026
Proposals Reception May 07, 2026
Ruling May 29, 2026
Execution/Construction Starting Date July 05, 2026

GEOLOCATION
State(s)
Oaxaca   

SPONSOR
Responsive image
Entity
Comisión Nacional del Agua
Department
Subdirección General de Agua Potable, Drenaje y Saneamiento
WebsiteInstitutional Arrangement

ADDITIONAL INFORMATION
Line
Source
Compras MX
Description
Compras MX is the Digital Public Procurement Platform of the Federal Public Administration, where anyone can access information about the purchases made by the Government of Mexico to support its operations for the benefit of all.
Portfolio ID or Key
LO-16-B00-016B00985-N-27-2026
Tendering Process
Portfolio ID or Key
LO-79-010-920024998-N-1-2025
Basic engineering and preliminary design
Line
Source
Secretaría de Medio Ambiente y Recursos Naturales
Description
Federal government entity and sectorial authority responsible for establishing the necessary criteria and instruments to guarantee the protection, preservation, and use of natural resources, by developing an environmental policy that ensures sustainable growth.
Portfolio ID or Key
20OA2025UD038
Permits
Line
Source
Transparencia Presupuestaria
Description
Digital platform used to monitor public expenditure, as well as the execution of public works throughout the country.
Portfolio ID or Key
2516B000067
Website
Line
Source
State Government
Project information

MULTIMEDIA

REMARKS
ID: 2516B000067
0992 Tren San Luis Potosí – Saltillo 0994 Agua para Campeche: Acueducto Chiná y Acuaférico Campeche

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