Barangay
Nattanzan
Nattanzan, Iguig, Cagayan, Region II (Cagayan Valley). Rural. Population 1,624 (2024 POPCEN).
PSGC 0201515017 · Source: PSA, PSGC 3Q 2026 Publication Datafile
Public records linked to Nattanzan
Counts include this barangay and every LGU under it. Each record carries how it was linked and a confidence level; figures are as recorded by the source and exclude single amounts of ₱10B+ held for verification. They are not findings.
DPWH infrastructure projects
Contracts on the DPWH Transparency portal, placed by coordinates first. Source: DPWH Transparency portal
4 records · ₱109,236,288.65
- Organizational Outcome 1: Ensure Safe and Reliable National Road System - Network Development Program - Construction of By-Pass and Diversion Roads - Iguig Bypass Road Phase Iii, Cagayan₱49,000,000.00 · 2022 · medium confidence (project coordinates inside the barangay boundary)
- Organizational Outcome 1: Ensure Safe and Reliable National Road System - Network Development Program - Construction of By-Pass and Diversion Roads - Iguig Bypass Road, Cagayan₱47,921,963.06 · 2021 · medium confidence (project coordinates inside the barangay boundary)
- Construction of 2-Storey 2-Laboratory (Building 1) at Calayan Hs, Calayan, Cagayan₱10,397,278.45 · 2018 · medium confidence (project coordinates inside the barangay boundary)
- Construction of Concrete Road, Brgy. Ajat, Iguig, Cagayan₱1,917,047.14 · 2018 · medium confidence (project coordinates inside the barangay boundary)
How linked: 4 by project coordinates inside the barangay boundary.
Contracts this LGU awarded (PhilGEPS)
PhilGEPS awards where the procuring entity is this LGU. Source: PhilGEPS award notices
Not yet linked to Nattanzan itself. This shows the municipality figure for Iguig.
2 records · ₱435,408,276.20
1 placed at Iguig level itself; the rest in LGUs under it.
- Municipality of Iguig, Cagayan₱430,413,420.61 · high confidence (the LGU itself is the buyer)
- Barangay Dumpao - Iguig, Cagayan₱4,994,855.59 · high confidence (the LGU itself is the buyer)
How linked: 2 by the LGU itself is the buyer.
PhilGEPS awards delivered here (all agencies)
Awards by any agency whose area of delivery is this province. PhilGEPS records delivery areas at province level only. Source: PhilGEPS award notices
Not yet linked to Nattanzan itself. This shows the province figure for Cagayan.
54,418 records · ₱160,674,728,030.93
54,360 placed at Cagayan level itself; the rest in LGUs under it.
- Cagayan₱160,674,728,030.93 · 54,360 awards · high confidence (area of delivery is this province only)
- Batangas, Bukidnon, Cagayan, Camarines Sur, Cotabato, Davao del Sur, Isabela, Pampanga, Tarlac₱112,839,000.00 · 2 awards · low confidence (area of delivery lists several provinces)
- Bohol, Bukidnon, Bulacan, Cagayan₱26,967,830.69 · 1 awards · low confidence (area of delivery lists several provinces)
- Bulacan, Cagayan₱12,244,267.53 · 2 awards · low confidence (area of delivery lists several provinces)
- Batangas, Bukidnon, Cagayan, Camarines Sur, Cotabato, Davao del Sur, Pampanga, Tarlac₱9,570,790.00 · 4 awards · low confidence (area of delivery lists several provinces)
- Bataan, Batanes, Batangas, Benguet, Biliran, Bohol, Bukidnon, Bulacan, Cagayan, Camarines Norte₱8,259,635.30 · 1 awards · low confidence (area of delivery lists several provinces)
How linked: 54,360 by area of delivery is this province only; 58 by area of delivery lists several provinces.
Local Government Support Fund releases
DBM LGSF project releases by province, city/municipality and barangay. Source: DBM COMPASS
Not yet linked to Nattanzan itself. This shows the municipality figure for Iguig.
10 records · ₱73,333,334.00
6 placed at Iguig level itself; the rest in LGUs under it.
- Construction of Level Iii Water Supply System at Barangay Baculud₱13,333,334.00 · 2024 · high confidence (location columns in the DBM release)
- Assistance to Indigent Individuals Or Families - Food Assistance₱10,000,000.00 · 2025 · high confidence (location columns in the DBM release)
- Construction of Water Supply System in Barangay Nattanzan, Iguig₱10,000,000.00 · 2024 · high confidence (location columns in the DBM release)
- Construction of Multi-Purpose Building at Nattanzan₱10,000,000.00 · 2024 · high confidence (location columns in the DBM release)
- Concreting of Local Road in Barangay Santa Barbara, Iguig, Cagayan, Region Ii (Cagayan Valley)₱5,000,000.00 · 2025 · high confidence (location columns in the DBM release)
- Concreting of Campo Barangay Road₱5,000,000.00 · 2022 · high confidence (location columns in the DBM release)
How linked: 10 by location columns in the DBM release.
GAA budget lines naming this place
General Appropriations Act lines whose text ends in this city/municipality and province. Source: DBM General Appropriations Act
Not yet linked to Nattanzan itself. This shows the municipality figure for Iguig.
75 records · ₱1,219,607,000.00
37 placed at Iguig level itself; the rest in LGUs under it.
- Construction of Cagayan River Flood Control Structure, Barangay Bayo, Iguig, Cagayan₱100,000,000.00 · 2025 · medium confidence (GAA line text names the place)
- Construction of Cagayan River Flood Control Structure, Barangay San Isidro, Iguig, Cagayan₱100,000,000.00 · 2025 · medium confidence (GAA line text names the place)
- Cagayan River Flood Management Projects, Minanga Sur (Sta. 0+000 - Sta. 0+250), Iguig, Cagayan₱80,000,000.00 · 2022 · high confidence (GAA line text names the place)
- Cagayan River Flood Management Projects, San Isidro (Sta. 0+000 - Sta. 0+250), Iguig, Cagayan₱80,000,000.00 · 2022 · high confidence (GAA line text names the place)
- Construction of Flood Control System, San Vicente, Iguig, Cagayan₱75,000,000.00 · 2017 · high confidence (GAA line text names the place)
- Construction of By-Pass and Diversion Roads - Iguig Bypass Road (Manaoag Bridge), Iguig, Cagayan₱70,000,000.00 · 2021 · high confidence (GAA line text names the place)
How linked: 75 by GAA line text names the place.
COA annual audit reports
Not yet linked: the COA reports loaded so far cover national agencies only. LGU audit reports are published at coa.gov.ph.
Published anomaly flags
Patterns in the linked records that reviewers checked and published. A flag is a question worth asking, not a finding of wrongdoing.
- High Concurrent Workload for One ContractorEgb Const Corp Formerly: Egb ConstContractor: Egb Const Corp Formerly: Egb Const
Contractors on linked DPWH projects
All 3 contractors on DPWH projects linked to Nattanzan and the LGUs under it. Click a column to sort.
| Egb Const CORP Formerly: Egb Const | 2 | ₱96,921,963.06 | 1 |
| Katha Builders | 1 | ₱10,397,278.45 | 0 |
| E Guadiz Const | 1 | ₱1,917,047.14 | 0 |
Costs as recorded by DPWH; single amounts of ₱10B+ are held for verification and excluded. Flags count published automated anomalies on this contractor's projects or awards here, plus flags on the contractor itself; they are not findings.

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