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 24BG0007 and 23BG0012 have near-identical descriptions about 105 m apart (funding years 2023, 2024; ₱96.48M, ₱24.13M). Worth checking whether they cover the same works. It is possible that the second contract is a continuation or expansion of the first project, but the earlier phase was not explicitly labeled.

Public record entityConstruction of Cagayan River Flood Control Project, Barangay San Guillermo, Angadanan, Isabela

LocationANGADANAN (ISABELA), ISABELA, Region IIContract 23BG0012

Amount₱24,132,730.03 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: 2022-10-17 · Maxar

After capture: 2025-06-02 · 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 0.78

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The only distinguishing marker is 'Phase II' in the first title, while the second title has no phase or package marker. Per the rule, if one title has a phase/package marker and the other has none, this is considered a potential unlabelled twin and should be published. The locations are very close (105 m), and the titles are otherwise near-identical, both referring to the same barangay and project type. The evidence is complete and checkable.

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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 Cagayan River Flood Control Project, Barangay San Guillermo, Angadanan, Isabela23BG0012Flood control	100%	October 1, 2023	August 18, 2023	—	completedsumbong source

Start: March 20, 2023 · 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": "23BG0012",
  "coordinates": {
    "lat": 16.804735,
    "lon": 121.772804
  },
  "municipality": "ANGADANAN (ISABELA)",
  "distanceMeters": 105.37785809128827,
  "titleSimilarity": 0.979381443298969
}

Source documents

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