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Supplemental bid bulletins
| Procurement / project | Code | ABC | Attached file |
|---|---|---|---|
| Design and Construction of Palsiguan Dam, Tunnels, Nueva Era Afterbay Dam, Link Canals, Diversion Dams, Irrigation and Drainage Canals and all Appurtenant Structures under the Ilocos Norte - Ilocos Sur - Abra Irrigation Project (INISAIP) | R1-INISAIP-DB-03 | R1-INISAIP-DB-03-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Design and Build Services for the Full Rehabilitation and Replacement of Rubber Bladder of the Angat Afterbay Regulatory Dam (Bustos Dam) | R3-AARDD-DB-1 | R3-AARDD-DB-1-Supplemental-Bid-Bulletin-No.-2.pdf | |
| Design and Build Services for the Full Rehabilitation and Replacement of Rubber Bladder of the Angat Afterbay Regulatory Dam (Bustos Dam) | R3-AARDD-DB-1 | R3-AARDD-DB-1-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Supply and Delivery of Various Engineering Softwares for NIA Engineering Department | NIACODSD-S-3 | NIACODSD-S-3-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Supply and Delivery of Brand-New Fifteen (15) units Motorcycle for the Tumauini River Multipurpose Project (TRMP) | R2-TRMP-S-1R | R2-TRMP-S-1R-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Supply and Delivery of Various Brand-New Transportation Equipment for the Lopez Small Reservoir Irrigation Project (LSRIP) | R4A-LSRIP-S-1 | R4A-LSRIP-S-1-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Supply and Delivery of Various Brand-New Transportation Equipment for the Tumauini River Multipurpose Project (TRMP) | R2-TRMP-S-1 | R2-TRMP-S-1-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Supply and Delivery of Various Brand-New Operation and Maintenance Equipment | NIACO-S-24 | NIACO-S-24-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Procurement of Consultancy Services for the Building Assessment, Building As-Built Architectural and Engineering Plans with Building Permit Acquisition for NIA Buildings A, B, and ICC Building | BS-004-2026 | Supplemental-Bid-Bulletin-No.1-BS-004-2026.pdf | |
| Supply, Delivery, Demo, and Testing of 9MM Caliber | BS-003-2026 | Supplemental-bid-bulletin-No.-2-BS-003-2026-1.pdf | |
| Supply, Delivery, Demo, and Testing of 9MM Caliber | BS-003-2026 | Supplemental-bid-bulletin-No.-1-BS-003-2026.pdf | |
| Design and Construction of Palsiguan Dam, Tunnels, Nueva Era Afterbay Dam, Link Canals, Diversion Dams, Irrigation and Drainage Canals and all Appurtenant Structures under the Ilocos Norte - Ilocos Sur - Abra Irrigation Project (INISAIP) | R1-INISAIPD-DB-02R | R1-INISAIPD-DB-02R-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Construction of Irrigation Facilities: Main Canal (Sta. 1+687 - Sta. 8+175), Lateral A and B, Sub-lateral A-1, A-2 and B-1, and Supply, Delivery, and Installation of Steelgates for Headgates for Calapangan Small Reservoir Irrigation Project | R2-CSRIPD-C-38-IF-R | R2-CSRIPD-C-38-IF-R-Supplemental-Bid-Bulletin-No.-3.pdf | |
| Procurement of Security Services for NIA Central Office (April to December 2026) | BS-002-2026 | Supplemental-bid-bulletin-No.-2-BS-002-2026_compressed.pdf | |
| Procurement of Security Services for NIA Central Office (April to December 2026) | BS-002-2026 | Supplemental-bid-bulletin-No.-1-BS-002-2026.pdf | |
| Construction of Irrigation Facilities: Main Canal (Sta. 1+687 - Sta. 8+175), Lateral A and B, Sub-lateral A-1, A-2 and B-1, and Supply, Delivery, and Installation of Steelgates for Headgates for Calapangan Small Reservoir Irrigation Project | R2-CSRIPD-C-38-IF-R | R2-CSRIPD-C-38-IF-R-Supplemental-Bid-Bulletin-No.-2.pdf | |
| Construction of High Dam and its Appurtenant Structures, Afterbay Dam, Long Siphon, Irrigation and Drainage Facilities of Tumauini River Multipurpose Project | R2-TRMPD-C-2R | R2-TRMPD-C-2R-Supplemental-Bid-Bulletin-No.-2.pdf | |
| Construction of High Dam and its Appurtenant Structures, Afterbay Dam, Long Siphon, Irrigation and Drainage Facilities of Tumauini River Multipurpose Project | R2-TRMPD-C-2R | Notice-of-Postponement-R2-TRMPD-C-2R.pdf | |
| Construction of High Dam and its Appurtenant Structures, Afterbay Dam, Long Siphon, Irrigation and Drainage Facilities of Tumauini River Multipurpose Project | R2-TRMPD-C-2R | R2-TRMPD-C-2R-Supplemental-Bid-Bulletin-No.-1-with-attachments.pdf | |
| Construction of Irrigation Facilities: Main Canal (Sta. 1+687 - Sta. 8+175), Lateral A and B, Sub-lateral A-1, A-2 and B-1, and Supply, Delivery, and Installation of Steelgates for Headgates for Calapangan Small Reservoir Irrigation Project | R2-CSRIPD-C-38-IF-R | R2-CSRIPD-C-38-IF-R-Supplemental-Bid-Bulletin-No.-1-with-attachments.pdf | |
| Supply and Delivery of Various Brand-New Motorcycles for Libang River Irrigation Project | R13-LRIP-S-1R2 | R13-LRIP-S-1R2-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Procurement of Meals and Snacks of National Irrigation Administration - Central Office for 10 months | BS-001-2026 | Supplemental-Bid-Bulletin-No.-1.pdf | |
| Construction of High Dam and Its Appurtenant Structures, Afterbay Dam, Long Siphon, Irrigation and Drainage Facilities of Tumauini River Multipurpose Project | R2-TRMPD-C-2 | R2-TRMPD-C-2-Supplemental-Bid-Bulletin-No.-1_0.pdf | |
| Supply and Delivery of Various Engineering Software for NIA Engineering Department | NIACODSD-S-2R1 | NIACODSD-S-2R1-Supplemental-Bid-Bulletin-No.-2-with-attachment.pdf | |
| Supply and Delivery of Various Engineering Software for NIA Engineering Department | NIACODSD-S-2R1 | NIACODSD-S-2R1-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Supply, Delivery, and Testing of Desktop and Laptop Computers | BS-021-2025 | Supplemental-Bid-Bulletin-No.-1.BS-021-2025pdf.pdf | |
| Design and Construction of Palsiguan Dam, Tunnels, Nueva Era Afterbay Dam and all Appurtenant Structures under the Ilocos Norte - Ilocos Sur - Abra Irrigation Project (INISAIP) | R1-INISAIPD-DB-02 | R1-INISRIPD-DB-02-Supplemental-Bid-Bulletin-No.-2.pdf | |
| Construction of Irrigation Facilities: Main Canal (Sta. 1+687 - Sta. 8+175), Lateral A and B, Sub-lateral A-1, A-2 and B-1, and Supply, Delivery, and Installation of Steelgates for Headgates under the Calapangan Small Reservoir Irrigation Project | R2-CSRIPD-C-38-IF | R2-CSRIPD-C-38-IF-Supplemental-Bid-Bulletin-No.-2.pdf | |
| Design and Construction of Palsiguan Dam, Tunnels, Nueva Era Afterbay Dam, Link Canals, Diversion Dams, Irrigation and Drainage Canals and All Appurtenant Structures under the Ilocos Norte - Ilocos Sur - Abra Irrigation Project (INISAIP) | R1-INISAIPD-DB-02 | R1-INISAIPD-DB-02-for-SBB-No.-1.pdf | |
| Construction of Irrigation Facilities: Main Canal (Sta. 1+687 - Sta. 8+175), Lateral A and B, Sub-lateral A-1, A-2 and B-1, and Supply, Delivery, and Installation of Steelgates for Headgates under the Calapangan Small Reservoir Irrigation Project | R2-CSRIPD-C-38-IF | R2-CSRIPD-C-38-IF-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Supply and Delivery of Various Brand-New Transportation Equipment for Libang River Irrigation Project | R13-LRIP-S-1R | R13-LRIP-S-1R-Supplemental-Bid-Bulletin-No.-2.pdf | |
| Design and Construction of Palasiguan Dam, Tunnels, Nueva Era Afterbay Dam, Link Canals, Diversion Dams, Irrigation and Drainage Canals and All Appurtenant Structures under the Ilocos Norte-Ilocos Sur-Abra Irrigation Project (INISAIP) | R1-INISAIPD-DB-01 | Supplemental-Bid-Bulletin-No.4-R1-INISAIPD-DB-01.pdf | |
| Supply and Delivery of Various Brand-New Transportation Equipment for NIA Institutional Development Division (NIA-IDD) | NIACO-S-23 | NIACO-S-23-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Procurement of Consultancy Services for the Building Assessment, Building As-Built Architectural and Engineering Plans with Building Permit Acquisition for NIA Buildings A, B, and ICC Building | BS-012-2025 | Supplemental-2-BS-012-2025.pdf | |
| Procurement of Consultancy Services for the Building Assessment, Building As-Built Architectural and Engineering Plans with Building Permit Acquisition for NIA Buildings A, B, and ICC Building | BS-012-2025 | Supplemental-1-BS-012-2025.pdf | |
| Supply and Delivery of Various Brand-New Transportation Equipment for Libang River Irrigation Project | R13-LRIP-S-1R | R13-LRIP-S-1R-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Supply and Delivery of Various Engineering Software for NIA Engineering Department | NIACODSD-S-2R | NIACODSD-S-2R-Supplemental-Bid-Bulletin-No.-2-with-attachments.pdf | |
| Notice of Cancellation of Procurement Activities for the Design and Construction of Palsiguan Dam, Tunnels, Nueva Era Afterbay Dam and all Appurtenant Structures under the Ilocos Norte - Ilocos Sur - Abra Irrigation Project (INISAIP) | R1-INISAIPD-DB-01 | 20,720,300,000.00 | R1-INISAIPD-DB-1-Notice-of-Cancellation.pdf |
| Supply and Delivery of Various Engineering Software for NIA Engineering Department | NIACODSD-S-2R | NIACODSD-S-2R-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Design and Construction of Palsiguan Dam, Tunnels, Nueva Era Afterbay Dam and All Appurtenant Structures under the Ilocos Norte - Ilocos Sur - Abra Irrigation Project | R1-INISAIPD-DB-1 | R1-INISAIPD-DB-1-Supplemental-Bid-Bulletin-No.-6.pdf | |
| Design and Construction of Palsiguan Dam, Tunnels, Nueva Era Afterbay Dam and all Appurtenant Structures under the Ilocos Norte - Ilocos Sur - Abra Irrigation Project (INISAIP) | R1-INISAIPD-DB-01 | INISAIP-SUPPLEMENTAL-BID-BULLETIN-NO.-5.pdf | |
| Design and Construction of Palasiguan Dam, Tunnels, Nueva Era Afterbay Dam, Link Canals, Diversion Dams, Irrigation and Drainage Canals and All Appurtenant Structures under the Ilocos Norte-Ilocos Sur-Abra Irrigation Project (INISAIP) | R1-INISAIPD-DB-01 | R1-INISAIPD-DB-01-Supplemental-Bid-Bulletin-No.-4.pdf | |
| Design and Construction of Palsiguan Dam, Tunnels, Nueva Era Afterbay Dam and all Appurtenant Structures under the Ilocos Norte - Ilocos Sur - Abra Irrigation Project (INISAIP) | R1-INISAIPD-DB-1 | R1-INISAIP-DB-1-Supplemental-Bid-Bulletin-No.-3.pdf | |
| Design and Construction of Palsiguan Dam, Tunnels, Nueva Era Afterbay Dam, Link Canals, Diversion Dams, Irrigation and Drainage Canals and All Appurtenant Structures under the Ilocos Norte-Ilocos Sur-Abra Irrigation Project (INISAIP) | R1-INISAIPD-DB-01 | R1-INISAIP-DB-1-Supplemental-Bid-Bulletin-No.-2.pdf | |
| Construction of High Dam and its Appurtenant Structures under the Tumauini River Multipurpose Project | R2-TRMPD-C-1 | Supplemental-Bid-Bulletin-No.5_R2-TRMP-C-1.pdf | |
| Construction of High Dam and its Appurtenant Structures under the Tumauini River Multipurpose Project | R2-TRMPD-C-1 | R2-TRMPD-C-1-Supplemental-Bid-Bulletin-No.-3.pdf | |
| Construction of High Dam and its Appurtenant Structures under the Tumauini River Multipurpose Project | R2-TRMPD-C-1 | R2-TRMPD-C-1-Supplemental-Bid-Bulletin-No.-4.pdf | |
| Design and Construction of Palsiguan Dam, Tunnels, Nueva Era Afterbay Dam, Link Canals, Diversion Dams, Irrigation and Drainage Canals and All Appurtenant Structures under the Ilocos Norte - Ilocos Sur - Abra Irrigation Project (INISAIP) | R1-INISAIPD-DB-01 | R1-INISAIP-DB-1-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Construction of High Dam and its Appurtenant Structures under the Tumauini River Multipurpose Project | R2-TRMPD-C-1 | R2-TRMPD-C-1-Supplemental-Bid-Bulletin-No.-2.pdf | |
| Construction of High Dam and its Appurtenant Structures under the Tumauini River Multipurpose Project | R2-TRMPD-C-1 | R2-TRMPD-C-1-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Supply and Delivery of Various Engineering Softwares for NIA Engineering Department | NIACOIEC-S-5 | Supplemental-Bid-Bulletin-No.1-NIACODSD-S-2.pdf | |
| Procurement of Services for Annual Physical Examination for CY 2025 | BS-009-2025 | Supplemental-bid-bulletin-No.-1-BS-009-2025-compressed.pdf | |
| Supply, Delivery, Installation, and Testing of Various Air-Conditioning Units | BS-007-2025 | SUPPLEMENTAL-BID-BULLETIN-NO-1-BS-007-2025.pdf | |
| Procurement of Consultancy Services for the Conduct of Social and Environmental Safeguard Assessment Studies - Package 3 under the Philippines Korea - Project Preparation Facility Agreement No. PHL-20 for the National Irrigation Administration | NIACOPPD-CS-3R | NIACOPPD-CS-3R-Supplemental-Bid-Bulletin-No.-3.pdf | |
| Procurement of Consultancy Services for the Conduct of Feasibility Studies - Package 1 under the Philippines Korea-Project Preparation Facility Agreement No. PHL-20 for the National Irrigation Administration | NIACOPPD-CS-1R | NIACOPPD-CS-1R-Supplemental-Bid-Bulletin-No.-3.pdf | |
| Construction of Balog-Balog Multipurpose Project Phase II Storage Dam and its Appurtenant Structures | R3-BBMPIID-C-7 | R3-BBMPIID-C-7-Supplemental-Bid-Bulletin-No.-2.pdf | |
| Supply and Delivery of Various Brand-new Transportation Equipment for Libang River Irrigation Project | R13-LRIP-S-1 | R13-LRIP-S-1-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Construction of Balog-Balog Multipurpose Project Phase II Storage Dam and its Appurtenant Structures | R3-BBMPIID-C-7 | R7-BBMPIID-C-7-Supplemental-Bid-Bulletin-No.-1.pdf | |
| Procurement of Service Provider for the Upgrading of Enhanced Farmland Geographic Information System (eFGIS), WebFGIS Portal and Farmland Database Development | NIACOIEC-S-5 | NIACOIEC-S-5-Supplemental-Bid-Bulletin-No.-3.pdf | |
| Procurement of Consultancy Services for the Conduct of Feasibility Studies - Package 1 under the Philippines Korea-Project Preparation Facility Agreement No. PHL-20 for the National Irrigation Administration | NIACOPPD-CS-1R | NIACOPPD-CS-1R-Supplemental-Bid-Bulletin-No.-2.pdf | |
| Procurement of Consultancy Services for the Conduct of Social and Environmental Safeguard Assessment Studies - Package 3 under the Philippines Korea - Project Preparation Facility Agreement No. PHL-20 for the National Irrigation Administration | NIACOPPD-CS-3R | NIACOPPD-CS-3R-Supplemental-Bid-Bulletin-No.-2.pdf | |
| Procurement of Service Provider for the Upgrading of Enhanced Farmland Geographic Information System (eFGIS), WebFGIS Portal and Farmland Database Development | NIACOIEC-S-5 | NIACOIEC-S-5-Supplememntal-Bid-Bulletin-No.-2.pdf |
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