Indicator C3 — Duplicate or Near-Duplicate Projects

AI-verified / Na-verify ng AI Data as of October 21, 2026

Duplicate or Near-Duplicate Projects

Very similar descriptions within ~100m or identical coordinates across contracts/years.

This is a statistical anomaly or indicator worth examining — not proof of wrongdoing, fraud, or corruption against any person.

Indicator: contracts 23AD0069 and 22AD0044 have near-identical descriptions about 842 m apart (funding years 2022, 2023; ₱9.60M, ₱4.90M). Worth checking whether they cover the same works. It is possible that the two contracts cover different sections of the same barangay or are sequential improvements.

Public record entityConstruction of Ambugat Flood Control, Barangay Ambugat, Burgos, Ilocos Sur

LocationBURGOS (ILOCOS SUR), ILOCOS SUR, Region IContract 22AD0044

Amount₱4,899,981.03 sumbong source

Only contractors and government agencies named in public procurement records are shown. Private individuals are not named.

Satellite before / after

Esri Wayback · ~0.31 mLocation approximate

Before capture: 2021-01-12 · Maxar

After capture: 2025-01-27 · Vantor

Satellite comparison for public reference — not proof of completion or non-completion.

Imagery may not show small or linear works; no visible change is not evidence of wrongdoing.

Imagery © Esri, Maxar, Earthstar Geographics, and the GIS User Community

Caveats & resolution

Esri World Imagery Wayback (~0.5–1 m); dates are archive release dates, not capture timestamps.
Imagery may not show small or linear works; no visible change is not evidence of wrongdoing.
DPWH coordinates can be approximate; marker shows the imagery center (may be snapped to riverbank/coast).

Disclaimer

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How this was checked

publish · confidence 0.95

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The two project titles are near-identical, both refer to flood control works in Barangay Ambugat, Burgos, Ilocos Sur, and are about 842 meters apart. The only difference in the titles is 'Brgy.' vs 'Barangay', which is a spelling variant and not a distinguishing marker. There are no phase, package, section, or other location markers that would indicate these are distinct works. The evidence is complete and meets the rule's criteria for publishing.

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Project completion

Schedule fields from DPWH transparency portal records and the Sumbong sa Pangulo flood-control list — not inferred beyond those columns.

Reported complete (DPWH): 1Ongoing: 0Delayed: 0Status unknown: 0

Project	Prog.	Target end	Actual end	Days late	Status
Construction of Ambugat Flood Control, Barangay Ambugat, Burgos, Ilocos Sur22AD0044Flood control	100%	April 27, 2022	April 17, 2023	—	completedsumbong source

Start: February 24, 2022 · Source fetched October 21, 2026

Rule Definition

Title similarity + distance or shared coordinates within municipality.

Triggering Data & citations

Similar project description near another contract in the same municipality

{
  "contractId": "22AD0044",
  "coordinates": {
    "lat": 17.32169,
    "lon": 120.4979
  },
  "municipality": "BURGOS (ILOCOS SUR)",
  "distanceMeters": 842.1529496025578,
  "titleSimilarity": 0.9361702127659575
}

Source documents

sumbong — https://raw.githubusercontent.com/rukku/sumbongsapangulo.ph-datasets/main/flood_control_projects.geojsonFetched October 21, 2026