0993 Presa Margarita Maza (Paso Ancho)

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Project

construction of the Margarita Maza Dam for the supply of drinking water to the city of Oaxaca de Juárez and the surrounding area (Paso Ancho) Dam, in the state of Oaxaca.

Sector: Water and Environment

Last Revision

July 16, 2025

Macroproject:

Infrastructure Projects of the National Water Plan

Short Name of the Project:

0993 Margarita Maza (Paso Ancho) 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:

7,840,620,000

Estimated Investment USD:

423,817,297

Exchange rate (USD/MXN) used by the Ministry of Finance for the economic plan 2025: $ 18.5

Contract Scope:

Construction

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DESCRIPTION

The project involves the construction of a storage dam, which will ensure a continuous supply of drinking water to the population of the Metropolitan Area of Oaxaca, benefiting 641,000 people.

Components:
-Dam
-Intake works
-Aqueduct
-Water treatment plant
-Interconnection lines and networks

LEGAL AND FINANCIAL STRUCTURE

Type of Project

Public

Type of Contract

Public Works

STATUS

Stage

Preinvestment

Substage

Studies

Relevant dates	Dates	Terms
Request for proposals/Announcement		2025

Stage

Preinvestment

Substage

Studies

RELEVANT DATES
Request for proposals/Announcement	2025

	No.	Type of Participant	Results

GEOLOCATION

State(s)

Oaxaca

SPONSOR

Website

Institutional Arrangement

Entity

Comisión Nacional del Agua

Department

Subdirección General de Agua Potable, Drenaje y Saneamiento

Website Institutional Arrangement

ADDITIONAL INFORMATION

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.

ID

LO-79-010-920024998-N-1-2025

Basic engineering and preliminary design

Source

State Government

Project information

Project

construction of the Margarita Maza Dam for the supply of drinking water to the city of Oaxaca de Juárez and the surrounding area (Paso Ancho) Dam, in the state of Oaxaca.

Sector: Water and Environment

Last Revision

Macroproject:

Short Name of the Project:

Type of Investment:

Subsector:

Asset (s):

Contract Currency:

Estimated Investment MXN:

7,840,620,000

Estimated Investment USD:

423,817,297

Contract Scope:

DESCRIPTION

LEGAL AND FINANCIAL STRUCTURE

Type of Project

Type of Contract

STATUS

Stage

Substage

Stage

Substage

GEOLOCATION

State(s)

SPONSOR

Entity

Department

ADDITIONAL INFORMATION

Source

Description

ID

Source

MULTIMEDIA

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Mexico Projects Hub

Project

construction of the Margarita Maza Dam for the supply of drinking water to the city of Oaxaca de Juárez and the surrounding area (Paso Ancho) Dam, in the state of Oaxaca.

Sector: Water and Environment

Last Revision

Macroproject:

Short Name of the Project:

Type of Investment:

Subsector:

Asset (s):

Contract Currency:

Estimated Investment MXN:

7,840,620,000

Estimated Investment USD:

423,817,297

Contract Scope:

DESCRIPTION

LEGAL AND FINANCIAL STRUCTURE

Type of Project

Type of Contract

STATUS

Stage

Substage

Stage

Substage

GEOLOCATION

State(s)

SPONSOR

Entity

Department

ADDITIONAL INFORMATION

Source

Description

ID

Source

MULTIMEDIA

QR Code

Quick Access

Mexico Projects Hub

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