Magat River Integrated Irrigation System

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Magat River Integrated Irrigation System NIA MARIIS is among the biggest irrigation system of National Irrigation Administration.

It owns and operates the Magat Dam which provides irrigation service to 90,000 hectares of riceland in Isabela province and portions of Quirino and Ifugao provinces.

ππˆπ€-πŒπ€π‘πˆπˆπ’ ππˆππ€πˆπ†π“πˆππ† 𝐀𝐍𝐆 πŠπŽπŽπ‘πƒπˆππ€π’π˜πŽπ 𝐒𝐀 πŒπ†π€ 𝐋𝐆𝐔 𝐏𝐀𝐑𝐀 𝐒𝐀 πƒπ‘π˜ π‚π‘πŽπ πŸπŸŽπŸπŸ•Personal na namahagi ang mga personnel ng NIA-MAR...
09/10/2026

ππˆπ€-πŒπ€π‘πˆπˆπ’ ππˆππ€πˆπ†π“πˆππ† 𝐀𝐍𝐆 πŠπŽπŽπ‘πƒπˆππ€π’π˜πŽπ 𝐒𝐀 πŒπ†π€ 𝐋𝐆𝐔 𝐏𝐀𝐑𝐀 𝐒𝐀 πƒπ‘π˜ π‚π‘πŽπ πŸπŸŽπŸπŸ•

Personal na namahagi ang mga personnel ng NIA-MARIIS Division IV – Institutional Development Unit ng mga liham-pabatid na may paksang β€œProgram Area for Dry Crop 2027 Due to Drought or El NiΓ±o” sa mga Local Government Units (LGUs) na sakop ng service area. Kabilang dito ang mga tanggapan ng mga City at Municipal Mayor at Agriculturist ng Alicia, Angadanan, Naguilian, Reina Mercedes, Luna, Cabatuan, San Mateo, at Cauayan City.

Layunin ng koordinasyong ito na maipabatid nang maaga sa mga LGU at magsasaka ang water delivery schedule para sa Dry Crop 2027, gayundin ang kasalukuyang antas at sitwasyon ng tubig sa Magat Dam. Sa pamamagitan nito, maiangkop ng mga magsasaka ang kanilang farming activities at maplano ang pagsisimula ng pagtatanim sa mga lugar na inaasahang madadaluyan ng patubig.

Patuloy ang Opisina sa pagsasagawa ng mga hakbang upang makapagbigay ng napapanahong impormasyon at updates sa mga magsasaka at iba pang stakeholders bilang tugon sa inaasahang tagtuyot o El NiΓ±o.

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πŒπ€π‘πˆπˆπ’ π‚πŽππƒπ”π‚π“π’ 𝐏𝐑𝐄-πŒπ€ππ€π†π„πŒπ„ππ“ π‘π„π•πˆπ„π– π€π’π’π„π’π’πŒπ„ππ“ πŒπ„π„π“πˆππ†MARIIS, through Division IV, conducted a Pre-Management Review M...
09/10/2026

πŒπ€π‘πˆπˆπ’ π‚πŽππƒπ”π‚π“π’ 𝐏𝐑𝐄-πŒπ€ππ€π†π„πŒπ„ππ“ π‘π„π•πˆπ„π– π€π’π’π„π’π’πŒπ„ππ“ πŒπ„π„π“πˆππ†

MARIIS, through Division IV, conducted a Pre-Management Review Meeting at the Division IV Mini Conference Room, Cauayan City, Isabela on October 8, 2026. This aimed to review and validate its accomplishments data and supporting documents for the upcoming MARIIS-wide Management Review.

Participants reviewed key Quality Management System (QMS) inputs including previous management review actions, internal and external issues, customer feedback, quality objectives, process performance, audit results, monitoring and measurement results, resource adequacy, risks and opportunities, and areas for improvement.

This initiative provided an opportunity to assess the Office’s accomplishments, address gaps, and identify necessary actions to further improve its QMS implementation.

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Magat Dam Update Today | 9:00am - October 09, 2026No Spillway Gate Open    sa
09/10/2026

Magat Dam Update Today | 9:00am - October 09, 2026
No Spillway Gate Open


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Siffu Dam as of 8:00AM | October 9, 2026   sa
09/10/2026

Siffu Dam as of 8:00AM | October 9, 2026


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 : π“π‘πž 𝐅𝐒𝐫𝐬𝐭 𝐌𝐚𝐠𝐚𝐭 π‘πžπ¬πžπ«π―π¨π’π« 𝐈𝐧𝐬𝐩𝐞𝐜𝐭𝐒𝐨𝐧On October 1, 1982, a historic milestone was recorded at Magat Reservoirβ€”the firs...
08/10/2026

: π“π‘πž 𝐅𝐒𝐫𝐬𝐭 𝐌𝐚𝐠𝐚𝐭 π‘πžπ¬πžπ«π―π¨π’π« 𝐈𝐧𝐬𝐩𝐞𝐜𝐭𝐒𝐨𝐧

On October 1, 1982, a historic milestone was recorded at Magat Reservoirβ€”the first documented reservoir inspection at an elevation of 170 meters above sea level (masl). The inspection was conducted by APM Francisco G. Novido, RRD Chief Genaro U. Salamanca, Dam Division Chief Melencio M. Canapi, and KIW’s Tanaka, marking an early chapter in the continuing story of Magat and the people entrusted with safeguarding its waters.

Forty-four years later, after months of low water levels brought about by the Super El NiΓ±o, Magat Reservoir rose to around 190 masl on October 3, 2026. Today, October 8, 2026, as of 8:00 a.m., the Magat Reservoir level is at 191.50 masl. For NIA-MARIIS, every meter gained means more than a number on a monitoring gauge. It brings renewed hope for water that can sustain irrigation, support our farmers, and help keep our farmlands productive.

From that first inspection in 1982 to the continuous monitoring today, generations of NIAns have shared one enduring responsibility: to safeguard Magat’s waters for the people who depend on them. May the elevation be sustained, the waters managed wisely, and every drop help bring life to our farms.

𝙋𝙖𝙧𝙖 𝙨𝙖 π™–π™©π™žπ™£π™œ π™’π™œπ™– π™’π™–π™œπ™¨π™–π™¨π™–π™ π™–. πŸ§‘β€πŸŒΎ 𝙋𝙖𝙧𝙖 𝙨𝙖 π™’π™–π™¨π™–π™œπ™–π™£π™–π™£π™œ π™–π™£π™ž. 🌾 𝙋𝙖𝙧𝙖 𝙨𝙖 π™–π™©π™žπ™£π™œ π™’π™–π™œπ™–π™£π™™π™–π™£π™œ π™ π™žπ™£π™–π™—π™ͺ𝙠𝙖𝙨𝙖𝙣. πŸŒ„

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Magat Dam Update Today | 8:00am - October 08, 2026No Spillway Gate Open    sa
08/10/2026

Magat Dam Update Today | 8:00am - October 08, 2026
No Spillway Gate Open


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𝐈𝐀𝐚𝐬𝐒𝐲𝐚𝐦 𝐧𝐚 𝐌𝐒𝐬𝐚 𝐧𝐠 𝐏𝐚𝐧𝐚𝐧𝐚𝐦𝐩𝐚π₯𝐚𝐭𝐚𝐲𝐚  Ginanap kaninang alas tres ng hapon ang ikawalong misa sa San Isidro Labrador Chape...
07/10/2026

𝐈𝐀𝐚𝐬𝐒𝐲𝐚𝐦 𝐧𝐚 𝐌𝐒𝐬𝐚 𝐧𝐠 𝐏𝐚𝐧𝐚𝐧𝐚𝐦𝐩𝐚π₯𝐚𝐭𝐚𝐲𝐚

Ginanap kaninang alas tres ng hapon ang ikawalong misa sa San Isidro Labrador Chapel, na muling dinaluhan ng mga empleyado mula sa NIA MARIIS Head Office at Division II.

Ang banal na misa ay pinangunahan ni Father Vener C. Ceperez mula sa Our Lady of the Pillar Parish, na nagbahagi ng tribute sa pagdiriwang ng Holy Rosary at ang kahalagahan nito bilang parte ng pananampalataya ng bawat isa.

Sa bawat pagtitipon, lalo nating pinagtitibay ang ating ugnayan sa Diyos bilang isang pamilya sa NIA MARIIS, nagkakaisa sa pananampalataya, katapatan, serbisyo, at pasasalamat.

𝐖𝐀𝐓𝐄𝐑 π–π„πƒππ„π’πƒπ€π˜ - π‹π€π‹πŽπ† 𝟏 π’πˆπ“π„ 𝟏 π’ππˆπThe Lalog 1 Site 1 Solar Pump Irrigation Project (SPIP), implemented by NIA-MARIIS ...
07/10/2026

𝐖𝐀𝐓𝐄𝐑 π–π„πƒππ„π’πƒπ€π˜ - π‹π€π‹πŽπ† 𝟏 π’πˆπ“π„ 𝟏 π’ππˆπ

The Lalog 1 Site 1 Solar Pump Irrigation Project (SPIP), implemented by NIA-MARIIS through its Division IV in Barangay Lalog 1, Luna, Isabela, covers 15 hectares and benefits 20 farmer beneficiaries.

Before the project, farmers in the area primarily planted corn. With the additional water from the Lalog 1 Site 1 SPIP, the area can now support rice production during the primary cropping season, followed by double-dry cropping with mungbean after harvest. This allows farmers to maximize their land, increase farm productivity, and create opportunities for additional income.


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ππˆπ€-πŒπ€π‘πˆπˆπ’ π’π­π«πžπ§π π­π‘πžπ§π¬ π‚πˆπ€π¬β€™ π…π’π§πšπ§πœπ’πšπ₯ 𝐏π₯𝐚𝐧𝐧𝐒𝐧𝐠 𝐟𝐨𝐫 π‚π˜ πŸπŸŽπŸπŸ• A clear and transparent financial plan is essential for prop...
07/10/2026

ππˆπ€-πŒπ€π‘πˆπˆπ’ π’π­π«πžπ§π π­π‘πžπ§π¬ π‚πˆπ€π¬β€™ π…π’π§πšπ§πœπ’πšπ₯ 𝐏π₯𝐚𝐧𝐧𝐒𝐧𝐠 𝐟𝐨𝐫 π‚π˜ πŸπŸŽπŸπŸ•

A clear and transparent financial plan is essential for proper budgeting, responsible use of funds, and effective management of resources. With this, NIA MARIIS through Division III conducted a Workshop Cum Meeting on the Preparation of the Unified Financial Plan and Budget for Calendar Year 2027 for the Bookkeepers and Councils of Irrigators’ Associations (CIAs) on October 6, 2026. The activity aimed to help ensure that the financial plans and budgets are properly prepared, organized, and aligned with the needs and activities of the respective CIAs.

Serving as the learning service providers and facilitators were Ms. Lovely Mae D. Taylan, Senior IDO, and Mr. Marvi Lei V. Liban, IDO-A, both from the NIA MARIIS Head Office, who provided guidance on the preparation and requirements of the Unified Financial Plan and Budget. Each CIA bookkeeper presented their draft financial plans, followed by an open forum where participants raised questions and discussed concerns regarding the preparation of their respective plans.

Through the concerted efforts of the Institutional Development Unit (IDU), headed by Ms. Cherryfie A. Villeza, with Engr. Derson B. Casiano, Head of the Operations and Maintenance Section, and under the leadership of Engr. Jaime M. Lara, Division Manager A, the workshop provided participants with an opportunity to refine their plans and clarify important financial matters.

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ππ‡πŽπ“πŽ 𝐍𝐄𝐖𝐒: The NIA-MARIIS, through Division II, conducted a Coordination Meeting for the Dry Cropping Season 2027 on Oc...
07/10/2026

ππ‡πŽπ“πŽ 𝐍𝐄𝐖𝐒: The NIA-MARIIS, through Division II, conducted a Coordination Meeting for the Dry Cropping Season 2027 on October 6, 2026, at the NIA-MARIIS Division II Conference Hall in San Mateo, Isabela.

The meeting was facilitated by the Institutional Development Unit, headed by Ms. Miriam B. Lucas, SIDO, together with Engr. Joel Bose and Engr. Morris Pacua, Area Supervisors of Area 1 and Area 2, respectively, under the supervision of Engr. Grethen G. Tuazon, Chief of the Operations and Maintenance (O&M) Section.

The meeting was attended by Municipal Agriculturists and representatives from the Municipal Agriculture Offices (MAO) of Angadanan, Alicia, Cabatuan, Ramon, San Isidro, and San Mateo, as well as presidents of various Councils of Irrigators’ Associations (CIAs), and Division II O&M personnel.

During the meeting, Engr. Rajah P. Corpuz, Supervising Engineer A of the Dam and Reservoir Division, provided updates on Magat Dam and its capacity to support the irrigation requirements of the service area, particularly in preparation for the anticipated El NiΓ±o conditions. The updates provided stakeholders with important information on the water situation and helped them better understand the factors that may affect irrigation operations during the dry season.

Meanwhile, Engr. NiΓ±o Ammayao, Engineer B, from the Operations Section of Head Office, presented the status of farming activities, the cropping calendar and pattern of planting, and the proposed program for Dry Crop 2027. The presentation provided stakeholders with essential information for synchronizing agricultural activities and planting schedules with the planned irrigation water delivery.

Municipal agriculturists and representatives from the participating MAOs also shared updates on seed positioning and the status of seed distribution in their respective municipalities. These updates will help ensure that the availability of farm inputs is properly coordinated with the planned planting schedules and irrigation services.

In his message, Division Manager Engr. Ronnie B. Besa encouraged the attendees to disseminate the updates and information discussed during the meeting to their respective farming communities. He emphasized the importance of keeping farmers informed so they can prepare accordingly, make timely decisions, and properly plan their farming activities for the coming cropping season.

An open forum was also conducted to provide participants with an opportunity to raise issues, concerns, and recommendations related to irrigation water delivery and distribution. The discussion allowed NIA personnel, MAO representatives, and CIA leaders to address concerns, exchange information, and identify measures to strengthen coordination and improve irrigation service delivery.

Through this coordination, Division II and its stakeholders aim to ensure the timely and efficient delivery of irrigation water, allowing farmers to plan their planting activities and prepare the necessary farm inputs accordingly. Proper coordination of irrigation services, cropping schedules, and agricultural support is expected to contribute to increased agricultural productivity, more efficient use of available water resources, and improved support for the livelihood and welfare of farming communities.

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Minante 1
Cauayan
3305

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Tuesday 7:45am - 5pm
Wednesday 7:45am - 5pm
Thursday 7:45am - 5pm
Friday 7:45am - 5pm

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